Home / 750,001.70-1,121,722.05-670,613.60

Finding the Fourth Proportional to 750,001.70, 1,121,722.05 and 670,613.60

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Solution

The fourth proportional to 750,001.70, 1,121,722.05 and 670,613.60 is: 1,002,987.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,001.70 : 1,121,722.05 = 670,613.60 : x
  2. Step 2: Convert to fraction form
    750,001.70/1,121,722.05 = 670,613.60/x
  3. Step 3: Cross multiply
    750,001.70x = 1,121,722.05 × 670,613.60
  4. Step 4: Simplify right side
    750,001.70x = 752,242,062,149.88
  5. Step 5: Solve for x
    x = 752,242,062,149.88/750,001.70
  6. Step 6: Final answer
    x = 1,002,987.14

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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.