Home / 748,704.78-1,123,582.05-432,727.02

Finding the Fourth Proportional to 748,704.78, 1,123,582.05 and 432,727.02

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Solution

The fourth proportional to 748,704.78, 1,123,582.05 and 432,727.02 is: 649,393.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,704.78 : 1,123,582.05 = 432,727.02 : x
  2. Step 2: Convert to fraction form
    748,704.78/1,123,582.05 = 432,727.02/x
  3. Step 3: Cross multiply
    748,704.78x = 1,123,582.05 × 432,727.02
  4. Step 4: Simplify right side
    748,704.78x = 486,204,312,221.99
  5. Step 5: Solve for x
    x = 486,204,312,221.99/748,704.78
  6. Step 6: Final answer
    x = 649,393.89

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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.