Home / 667,340.10-1,001,010.15-660,341.70

Finding the Fourth Proportional to 667,340.10, 1,001,010.15 and 660,341.70

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Solution

The fourth proportional to 667,340.10, 1,001,010.15 and 660,341.70 is: 990,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,340.10 : 1,001,010.15 = 660,341.70 : x
  2. Step 2: Convert to fraction form
    667,340.10/1,001,010.15 = 660,341.70/x
  3. Step 3: Cross multiply
    667,340.10x = 1,001,010.15 × 660,341.70
  4. Step 4: Simplify right side
    667,340.10x = 661,008,744,168.26
  5. Step 5: Solve for x
    x = 661,008,744,168.26/667,340.10
  6. Step 6: Final answer
    x = 990,512.55

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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.