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Finding the Fourth Proportional to 803,463.47, 1,108,776.54 and 440,893.40

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Solution

The fourth proportional to 803,463.47, 1,108,776.54 and 440,893.40 is: 608,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,463.47 : 1,108,776.54 = 440,893.40 : x
  2. Step 2: Convert to fraction form
    803,463.47/1,108,776.54 = 440,893.40/x
  3. Step 3: Cross multiply
    803,463.47x = 1,108,776.54 × 440,893.40
  4. Step 4: Simplify right side
    803,463.47x = 488,852,253,016.95
  5. Step 5: Solve for x
    x = 488,852,253,016.95/803,463.47
  6. Step 6: Final answer
    x = 608,431.21

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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.