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Finding the Fourth Proportional to 502,658.05, 693,436.92 and 445,355.83

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Solution

The fourth proportional to 502,658.05, 693,436.92 and 445,355.83 is: 614,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,658.05 : 693,436.92 = 445,355.83 : x
  2. Step 2: Convert to fraction form
    502,658.05/693,436.92 = 445,355.83/x
  3. Step 3: Cross multiply
    502,658.05x = 693,436.92 × 445,355.83
  4. Step 4: Simplify right side
    502,658.05x = 308,826,175,059.24
  5. Step 5: Solve for x
    x = 308,826,175,059.24/502,658.05
  6. Step 6: Final answer
    x = 614,386.21

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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.