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Finding the Fourth Proportional to 608,982.72, 912,424.08 and 403,691.52

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Solution

The fourth proportional to 608,982.72, 912,424.08 and 403,691.52 is: 604,841.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,982.72 : 912,424.08 = 403,691.52 : x
  2. Step 2: Convert to fraction form
    608,982.72/912,424.08 = 403,691.52/x
  3. Step 3: Cross multiply
    608,982.72x = 912,424.08 × 403,691.52
  4. Step 4: Simplify right side
    608,982.72x = 368,337,863,739.80
  5. Step 5: Solve for x
    x = 368,337,863,739.80/608,982.72
  6. Step 6: Final answer
    x = 604,841.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.