Home / 1,488,785.52-2,233,399.71-690,147.80

Finding the Fourth Proportional to 1,488,785.52, 2,233,399.71 and 690,147.80

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Solution

The fourth proportional to 1,488,785.52, 2,233,399.71 and 690,147.80 is: 1,035,324.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488,785.52 : 2,233,399.71 = 690,147.80 : x
  2. Step 2: Convert to fraction form
    1,488,785.52/2,233,399.71 = 690,147.80/x
  3. Step 3: Cross multiply
    1,488,785.52x = 2,233,399.71 × 690,147.80
  4. Step 4: Simplify right side
    1,488,785.52x = 1,541,375,885,210.14
  5. Step 5: Solve for x
    x = 1,541,375,885,210.14/1,488,785.52
  6. Step 6: Final answer
    x = 1,035,324.34

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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.