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Finding the Fourth Proportional to 431,549.47, 595,793.40 and 383,670.28

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Solution

The fourth proportional to 431,549.47, 595,793.40 and 383,670.28 is: 529,691.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,549.47 : 595,793.40 = 383,670.28 : x
  2. Step 2: Convert to fraction form
    431,549.47/595,793.40 = 383,670.28/x
  3. Step 3: Cross multiply
    431,549.47x = 595,793.40 × 383,670.28
  4. Step 4: Simplify right side
    431,549.47x = 228,588,220,600.15
  5. Step 5: Solve for x
    x = 228,588,220,600.15/431,549.47
  6. Step 6: Final answer
    x = 529,691.81

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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.