Home / 712,279.80-1,068,020.32-487,893.60

Finding the Fourth Proportional to 712,279.80, 1,068,020.32 and 487,893.60

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Solution

The fourth proportional to 712,279.80, 1,068,020.32 and 487,893.60 is: 731,566.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,279.80 : 1,068,020.32 = 487,893.60 : x
  2. Step 2: Convert to fraction form
    712,279.80/1,068,020.32 = 487,893.60/x
  3. Step 3: Cross multiply
    712,279.80x = 1,068,020.32 × 487,893.60
  4. Step 4: Simplify right side
    712,279.80x = 521,080,278,797.95
  5. Step 5: Solve for x
    x = 521,080,278,797.95/712,279.80
  6. Step 6: Final answer
    x = 731,566.83

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1.5x scale

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.