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Finding the Fourth Proportional to 676,762.88, 933,843.80 and 404,731.40

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Solution

The fourth proportional to 676,762.88, 933,843.80 and 404,731.40 is: 558,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,762.88 : 933,843.80 = 404,731.40 : x
  2. Step 2: Convert to fraction form
    676,762.88/933,843.80 = 404,731.40/x
  3. Step 3: Cross multiply
    676,762.88x = 933,843.80 × 404,731.40
  4. Step 4: Simplify right side
    676,762.88x = 377,955,904,897.93
  5. Step 5: Solve for x
    x = 377,955,904,897.93/676,762.88
  6. Step 6: Final answer
    x = 558,476.12

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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.