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Finding the Fourth Proportional to 440,523.42, 607,385.43 and 372,422.94

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Solution

The fourth proportional to 440,523.42, 607,385.43 and 372,422.94 is: 513,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,523.42 : 607,385.43 = 372,422.94 : x
  2. Step 2: Convert to fraction form
    440,523.42/607,385.43 = 372,422.94/x
  3. Step 3: Cross multiply
    440,523.42x = 607,385.43 × 372,422.94
  4. Step 4: Simplify right side
    440,523.42x = 226,204,267,553.76
  5. Step 5: Solve for x
    x = 226,204,267,553.76/440,523.42
  6. Step 6: Final answer
    x = 513,489.77

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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.