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Finding the Fourth Proportional to 542,603.97, 748,756.85 and 313,170.93

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Solution

The fourth proportional to 542,603.97, 748,756.85 and 313,170.93 is: 432,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,603.97 : 748,756.85 = 313,170.93 : x
  2. Step 2: Convert to fraction form
    542,603.97/748,756.85 = 313,170.93/x
  3. Step 3: Cross multiply
    542,603.97x = 748,756.85 × 313,170.93
  4. Step 4: Simplify right side
    542,603.97x = 234,488,877,492.52
  5. Step 5: Solve for x
    x = 234,488,877,492.52/542,603.97
  6. Step 6: Final answer
    x = 432,154.74

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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.