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Finding the Fourth Proportional to 608,658.88, 913,874.56 and 432,103.36

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Solution

The fourth proportional to 608,658.88, 913,874.56 and 432,103.36 is: 648,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,658.88 : 913,874.56 = 432,103.36 : x
  2. Step 2: Convert to fraction form
    608,658.88/913,874.56 = 432,103.36/x
  3. Step 3: Cross multiply
    608,658.88x = 913,874.56 × 432,103.36
  4. Step 4: Simplify right side
    608,658.88x = 394,888,267,994.52
  5. Step 5: Solve for x
    x = 394,888,267,994.52/608,658.88
  6. Step 6: Final answer
    x = 648,784.21

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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.