Home / 724,869.53-1,000,332.32-398,196.32

Finding the Fourth Proportional to 724,869.53, 1,000,332.32 and 398,196.32

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Solution

The fourth proportional to 724,869.53, 1,000,332.32 and 398,196.32 is: 549,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,869.53 : 1,000,332.32 = 398,196.32 : x
  2. Step 2: Convert to fraction form
    724,869.53/1,000,332.32 = 398,196.32/x
  3. Step 3: Cross multiply
    724,869.53x = 1,000,332.32 × 398,196.32
  4. Step 4: Simplify right side
    724,869.53x = 398,328,644,695.01
  5. Step 5: Solve for x
    x = 398,328,644,695.01/724,869.53
  6. Step 6: Final answer
    x = 549,517.71

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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.