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Finding the Fourth Proportional to 635,155.76, 876,515.79 and 344,767.14

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Solution

The fourth proportional to 635,155.76, 876,515.79 and 344,767.14 is: 475,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,155.76 : 876,515.79 = 344,767.14 : x
  2. Step 2: Convert to fraction form
    635,155.76/876,515.79 = 344,767.14/x
  3. Step 3: Cross multiply
    635,155.76x = 876,515.79 × 344,767.14
  4. Step 4: Simplify right side
    635,155.76x = 302,193,840,340.21
  5. Step 5: Solve for x
    x = 302,193,840,340.21/635,155.76
  6. Step 6: Final answer
    x = 475,779.11

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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.