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Finding the Fourth Proportional to 802,909.72, 1,107,935.58 and 463,487.32

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Solution

The fourth proportional to 802,909.72, 1,107,935.58 and 463,487.32 is: 639,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,909.72 : 1,107,935.58 = 463,487.32 : x
  2. Step 2: Convert to fraction form
    802,909.72/1,107,935.58 = 463,487.32/x
  3. Step 3: Cross multiply
    802,909.72x = 1,107,935.58 × 463,487.32
  4. Step 4: Simplify right side
    802,909.72x = 513,514,092,706.85
  5. Step 5: Solve for x
    x = 513,514,092,706.85/802,909.72
  6. Step 6: Final answer
    x = 639,566.42

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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.