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Finding the Fourth Proportional to 522,337.32, 720,974.99 and 307,601.96

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Solution

The fourth proportional to 522,337.32, 720,974.99 and 307,601.96 is: 424,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,337.32 : 720,974.99 = 307,601.96 : x
  2. Step 2: Convert to fraction form
    522,337.32/720,974.99 = 307,601.96/x
  3. Step 3: Cross multiply
    522,337.32x = 720,974.99 × 307,601.96
  4. Step 4: Simplify right side
    522,337.32x = 221,773,314,892.10
  5. Step 5: Solve for x
    x = 221,773,314,892.10/522,337.32
  6. Step 6: Final answer
    x = 424,578.73

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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.