Home / 847,954.20-1,272,915.45-511,374.90

Finding the Fourth Proportional to 847,954.20, 1,272,915.45 and 511,374.90

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Solution

The fourth proportional to 847,954.20, 1,272,915.45 and 511,374.90 is: 767,655.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,954.20 : 1,272,915.45 = 511,374.90 : x
  2. Step 2: Convert to fraction form
    847,954.20/1,272,915.45 = 511,374.90/x
  3. Step 3: Cross multiply
    847,954.20x = 1,272,915.45 × 511,374.90
  4. Step 4: Simplify right side
    847,954.20x = 650,937,010,952.21
  5. Step 5: Solve for x
    x = 650,937,010,952.21/847,954.20
  6. Step 6: Final answer
    x = 767,655.86

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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.