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Finding the Fourth Proportional to 546,402.82, 754,109.88 and 320,138.50

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Solution

The fourth proportional to 546,402.82, 754,109.88 and 320,138.50 is: 441,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,402.82 : 754,109.88 = 320,138.50 : x
  2. Step 2: Convert to fraction form
    546,402.82/754,109.88 = 320,138.50/x
  3. Step 3: Cross multiply
    546,402.82x = 754,109.88 × 320,138.50
  4. Step 4: Simplify right side
    546,402.82x = 241,419,605,818.38
  5. Step 5: Solve for x
    x = 241,419,605,818.38/546,402.82
  6. Step 6: Final answer
    x = 441,834.48

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1.5x scale

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.