Home / 925,159.80-1,386,702.90-392,590.20

Finding the Fourth Proportional to 925,159.80, 1,386,702.90 and 392,590.20

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Solution

The fourth proportional to 925,159.80, 1,386,702.90 and 392,590.20 is: 588,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,159.80 : 1,386,702.90 = 392,590.20 : x
  2. Step 2: Convert to fraction form
    925,159.80/1,386,702.90 = 392,590.20/x
  3. Step 3: Cross multiply
    925,159.80x = 1,386,702.90 × 392,590.20
  4. Step 4: Simplify right side
    925,159.80x = 544,405,968,851.58
  5. Step 5: Solve for x
    x = 544,405,968,851.58/925,159.80
  6. Step 6: Final answer
    x = 588,445.34

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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.