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Finding the Fourth Proportional to 555,758.38, 766,936.51 and 314,035.75

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Solution

The fourth proportional to 555,758.38, 766,936.51 and 314,035.75 is: 433,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,758.38 : 766,936.51 = 314,035.75 : x
  2. Step 2: Convert to fraction form
    555,758.38/766,936.51 = 314,035.75/x
  3. Step 3: Cross multiply
    555,758.38x = 766,936.51 × 314,035.75
  4. Step 4: Simplify right side
    555,758.38x = 240,845,482,120.23
  5. Step 5: Solve for x
    x = 240,845,482,120.23/555,758.38
  6. Step 6: Final answer
    x = 433,363.65

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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.