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Finding the Fourth Proportional to 635,248.72, 876,603.96 and 348,767.20

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Solution

The fourth proportional to 635,248.72, 876,603.96 and 348,767.20 is: 481,277.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,248.72 : 876,603.96 = 348,767.20 : x
  2. Step 2: Convert to fraction form
    635,248.72/876,603.96 = 348,767.20/x
  3. Step 3: Cross multiply
    635,248.72x = 876,603.96 × 348,767.20
  4. Step 4: Simplify right side
    635,248.72x = 305,730,708,638.11
  5. Step 5: Solve for x
    x = 305,730,708,638.11/635,248.72
  6. Step 6: Final answer
    x = 481,277.17

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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.