Home / 867,086.10-1,300,629.15-235,998.90

Finding the Fourth Proportional to 867,086.10, 1,300,629.15 and 235,998.90

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Solution

The fourth proportional to 867,086.10, 1,300,629.15 and 235,998.90 is: 353,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,086.10 : 1,300,629.15 = 235,998.90 : x
  2. Step 2: Convert to fraction form
    867,086.10/1,300,629.15 = 235,998.90/x
  3. Step 3: Cross multiply
    867,086.10x = 1,300,629.15 × 235,998.90
  4. Step 4: Simplify right side
    867,086.10x = 306,947,048,707.94
  5. Step 5: Solve for x
    x = 306,947,048,707.94/867,086.10
  6. Step 6: Final answer
    x = 353,998.35

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Double scale
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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.