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Finding the Fourth Proportional to 676,765, 933,935.70 and 404,844.36

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Solution

The fourth proportional to 676,765, 933,935.70 and 404,844.36 is: 558,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,765 : 933,935.70 = 404,844.36 : x
  2. Step 2: Convert to fraction form
    676,765/933,935.70 = 404,844.36/x
  3. Step 3: Cross multiply
    676,765x = 933,935.70 × 404,844.36
  4. Step 4: Simplify right side
    676,765x = 378,098,600,747.65
  5. Step 5: Solve for x
    x = 378,098,600,747.65/676,765
  6. Step 6: Final answer
    x = 558,685.22

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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.