Home / 867,123.30-1,300,684.95-306,084.90

Finding the Fourth Proportional to 867,123.30, 1,300,684.95 and 306,084.90

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Solution

The fourth proportional to 867,123.30, 1,300,684.95 and 306,084.90 is: 459,127.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,123.30 : 1,300,684.95 = 306,084.90 : x
  2. Step 2: Convert to fraction form
    867,123.30/1,300,684.95 = 306,084.90/x
  3. Step 3: Cross multiply
    867,123.30x = 1,300,684.95 × 306,084.90
  4. Step 4: Simplify right side
    867,123.30x = 398,120,022,852.26
  5. Step 5: Solve for x
    x = 398,120,022,852.26/867,123.30
  6. Step 6: Final answer
    x = 459,127.35

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Half scale
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Double scale
Find fourth proportional to 867,124.30, 1,300,686.45 and 306,085.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.