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Finding the Fourth Proportional to 542,941.88, 749,260.40 and 316,631.12

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Solution

The fourth proportional to 542,941.88, 749,260.40 and 316,631.12 is: 436,951.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,941.88 : 749,260.40 = 316,631.12 : x
  2. Step 2: Convert to fraction form
    542,941.88/749,260.40 = 316,631.12/x
  3. Step 3: Cross multiply
    542,941.88x = 749,260.40 × 316,631.12
  4. Step 4: Simplify right side
    542,941.88x = 237,239,154,294.19
  5. Step 5: Solve for x
    x = 237,239,154,294.19/542,941.88
  6. Step 6: Final answer
    x = 436,951.29

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Double scale
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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.