Home / 668,115.60-1,002,246.30-647,120.40

Finding the Fourth Proportional to 668,115.60, 1,002,246.30 and 647,120.40

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Solution

The fourth proportional to 668,115.60, 1,002,246.30 and 647,120.40 is: 970,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,115.60 : 1,002,246.30 = 647,120.40 : x
  2. Step 2: Convert to fraction form
    668,115.60/1,002,246.30 = 647,120.40/x
  3. Step 3: Cross multiply
    668,115.60x = 1,002,246.30 × 647,120.40
  4. Step 4: Simplify right side
    668,115.60x = 648,574,026,554.52
  5. Step 5: Solve for x
    x = 648,574,026,554.52/668,115.60
  6. Step 6: Final answer
    x = 970,751.21

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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.