Home / 992,357.64-1,488,339.72-282,391.92

Finding the Fourth Proportional to 992,357.64, 1,488,339.72 and 282,391.92

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Solution

The fourth proportional to 992,357.64, 1,488,339.72 and 282,391.92 is: 423,531.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,357.64 : 1,488,339.72 = 282,391.92 : x
  2. Step 2: Convert to fraction form
    992,357.64/1,488,339.72 = 282,391.92/x
  3. Step 3: Cross multiply
    992,357.64x = 1,488,339.72 × 282,391.92
  4. Step 4: Simplify right side
    992,357.64x = 420,295,111,143.06
  5. Step 5: Solve for x
    x = 420,295,111,143.06/992,357.64
  6. Step 6: Final answer
    x = 423,531.89

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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.