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Finding the Fourth Proportional to 916,645.52, 1,375,034.52 and 383,630.24

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Solution

The fourth proportional to 916,645.52, 1,375,034.52 and 383,630.24 is: 575,473.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,645.52 : 1,375,034.52 = 383,630.24 : x
  2. Step 2: Convert to fraction form
    916,645.52/1,375,034.52 = 383,630.24/x
  3. Step 3: Cross multiply
    916,645.52x = 1,375,034.52 × 383,630.24
  4. Step 4: Simplify right side
    916,645.52x = 527,504,822,915.89
  5. Step 5: Solve for x
    x = 527,504,822,915.89/916,645.52
  6. Step 6: Final answer
    x = 575,473.08

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1.5x scale

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.