Home / 931,747.60-1,398,658.20-511,843.60

Finding the Fourth Proportional to 931,747.60, 1,398,658.20 and 511,843.60

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Solution

The fourth proportional to 931,747.60, 1,398,658.20 and 511,843.60 is: 768,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,747.60 : 1,398,658.20 = 511,843.60 : x
  2. Step 2: Convert to fraction form
    931,747.60/1,398,658.20 = 511,843.60/x
  3. Step 3: Cross multiply
    931,747.60x = 1,398,658.20 × 511,843.60
  4. Step 4: Simplify right side
    931,747.60x = 715,894,248,257.52
  5. Step 5: Solve for x
    x = 715,894,248,257.52/931,747.60
  6. Step 6: Final answer
    x = 768,334.95

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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.