Home / 869,123.30-1,303,684.95-371,459.30

Finding the Fourth Proportional to 869,123.30, 1,303,684.95 and 371,459.30

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Solution

The fourth proportional to 869,123.30, 1,303,684.95 and 371,459.30 is: 557,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,123.30 : 1,303,684.95 = 371,459.30 : x
  2. Step 2: Convert to fraction form
    869,123.30/1,303,684.95 = 371,459.30/x
  3. Step 3: Cross multiply
    869,123.30x = 1,303,684.95 × 371,459.30
  4. Step 4: Simplify right side
    869,123.30x = 484,265,898,947.54
  5. Step 5: Solve for x
    x = 484,265,898,947.54/869,123.30
  6. Step 6: Final answer
    x = 557,188.95

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Double scale
Find fourth proportional to 869,124.30, 1,303,686.45 and 371,460.30
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.