Home / 868,143.11-1,197,979.65-480,932.51

Finding the Fourth Proportional to 868,143.11, 1,197,979.65 and 480,932.51

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Solution

The fourth proportional to 868,143.11, 1,197,979.65 and 480,932.51 is: 663,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,143.11 : 1,197,979.65 = 480,932.51 : x
  2. Step 2: Convert to fraction form
    868,143.11/1,197,979.65 = 480,932.51/x
  3. Step 3: Cross multiply
    868,143.11x = 1,197,979.65 × 480,932.51
  4. Step 4: Simplify right side
    868,143.11x = 576,147,354,013.52
  5. Step 5: Solve for x
    x = 576,147,354,013.52/868,143.11
  6. Step 6: Final answer
    x = 663,654.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.