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Finding the Fourth Proportional to 542,960.10, 814,440.15 and 354,003.30

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Solution

The fourth proportional to 542,960.10, 814,440.15 and 354,003.30 is: 531,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,960.10 : 814,440.15 = 354,003.30 : x
  2. Step 2: Convert to fraction form
    542,960.10/814,440.15 = 354,003.30/x
  3. Step 3: Cross multiply
    542,960.10x = 814,440.15 × 354,003.30
  4. Step 4: Simplify right side
    542,960.10x = 288,314,500,752.50
  5. Step 5: Solve for x
    x = 288,314,500,752.50/542,960.10
  6. Step 6: Final answer
    x = 531,004.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.