Home / 747,380.63-1,121,060.40-347,797.91

Finding the Fourth Proportional to 747,380.63, 1,121,060.40 and 347,797.91

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Solution

The fourth proportional to 747,380.63, 1,121,060.40 and 347,797.91 is: 521,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,380.63 : 1,121,060.40 = 347,797.91 : x
  2. Step 2: Convert to fraction form
    747,380.63/1,121,060.40 = 347,797.91/x
  3. Step 3: Cross multiply
    747,380.63x = 1,121,060.40 × 347,797.91
  4. Step 4: Simplify right side
    747,380.63x = 389,902,464,103.76
  5. Step 5: Solve for x
    x = 389,902,464,103.76/747,380.63
  6. Step 6: Final answer
    x = 521,691.96

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Double scale
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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.