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Finding the Fourth Proportional to 723,779.52, 998,935.52 and 401,593.42

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Solution

The fourth proportional to 723,779.52, 998,935.52 and 401,593.42 is: 554,265.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,779.52 : 998,935.52 = 401,593.42 : x
  2. Step 2: Convert to fraction form
    723,779.52/998,935.52 = 401,593.42/x
  3. Step 3: Cross multiply
    723,779.52x = 998,935.52 × 401,593.42
  4. Step 4: Simplify right side
    723,779.52x = 401,165,931,836.28
  5. Step 5: Solve for x
    x = 401,165,931,836.28/723,779.52
  6. Step 6: Final answer
    x = 554,265.38

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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.