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Finding the Fourth Proportional to 888,126.30, 1,330,658.55 and 413,838.90

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Solution

The fourth proportional to 888,126.30, 1,330,658.55 and 413,838.90 is: 620,045.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,126.30 : 1,330,658.55 = 413,838.90 : x
  2. Step 2: Convert to fraction form
    888,126.30/1,330,658.55 = 413,838.90/x
  3. Step 3: Cross multiply
    888,126.30x = 1,330,658.55 × 413,838.90
  4. Step 4: Simplify right side
    888,126.30x = 550,678,270,607.60
  5. Step 5: Solve for x
    x = 550,678,270,607.60/888,126.30
  6. Step 6: Final answer
    x = 620,045.00

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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.