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Finding the Fourth Proportional to 655,345.56, 904,655.60 and 440,610.10

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Solution

The fourth proportional to 655,345.56, 904,655.60 and 440,610.10 is: 608,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,345.56 : 904,655.60 = 440,610.10 : x
  2. Step 2: Convert to fraction form
    655,345.56/904,655.60 = 440,610.10/x
  3. Step 3: Cross multiply
    655,345.56x = 904,655.60 × 440,610.10
  4. Step 4: Simplify right side
    655,345.56x = 398,600,394,381.56
  5. Step 5: Solve for x
    x = 398,600,394,381.56/655,345.56
  6. Step 6: Final answer
    x = 608,229.34

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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.