Home / 802,319.64-1,107,704.52-516,336.72

Finding the Fourth Proportional to 802,319.64, 1,107,704.52 and 516,336.72

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Solution

The fourth proportional to 802,319.64, 1,107,704.52 and 516,336.72 is: 712,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,319.64 : 1,107,704.52 = 516,336.72 : x
  2. Step 2: Convert to fraction form
    802,319.64/1,107,704.52 = 516,336.72/x
  3. Step 3: Cross multiply
    802,319.64x = 1,107,704.52 × 516,336.72
  4. Step 4: Simplify right side
    802,319.64x = 571,948,518,585.97
  5. Step 5: Solve for x
    x = 571,948,518,585.97/802,319.64
  6. Step 6: Final answer
    x = 712,868.65

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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.