Home / 724,531.68-999,834.27-434,307.20

Finding the Fourth Proportional to 724,531.68, 999,834.27 and 434,307.20

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Solution

The fourth proportional to 724,531.68, 999,834.27 and 434,307.20 is: 599,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,531.68 : 999,834.27 = 434,307.20 : x
  2. Step 2: Convert to fraction form
    724,531.68/999,834.27 = 434,307.20/x
  3. Step 3: Cross multiply
    724,531.68x = 999,834.27 × 434,307.20
  4. Step 4: Simplify right side
    724,531.68x = 434,235,217,268.57
  5. Step 5: Solve for x
    x = 434,235,217,268.57/724,531.68
  6. Step 6: Final answer
    x = 599,332.27

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.