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Finding the Fourth Proportional to 478,697.17, 660,606.11 and 263,837.79

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Solution

The fourth proportional to 478,697.17, 660,606.11 and 263,837.79 is: 364,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,697.17 : 660,606.11 = 263,837.79 : x
  2. Step 2: Convert to fraction form
    478,697.17/660,606.11 = 263,837.79/x
  3. Step 3: Cross multiply
    478,697.17x = 660,606.11 × 263,837.79
  4. Step 4: Simplify right side
    478,697.17x = 174,292,856,122.90
  5. Step 5: Solve for x
    x = 174,292,856,122.90/478,697.17
  6. Step 6: Final answer
    x = 364,098.36

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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.