Home / 762,724.55-1,057,382.13-722,279.63

Finding the Fourth Proportional to 762,724.55, 1,057,382.13 and 722,279.63

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Solution

The fourth proportional to 762,724.55, 1,057,382.13 and 722,279.63 is: 1,001,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,724.55 : 1,057,382.13 = 722,279.63 : x
  2. Step 2: Convert to fraction form
    762,724.55/1,057,382.13 = 722,279.63/x
  3. Step 3: Cross multiply
    762,724.55x = 1,057,382.13 × 722,279.63
  4. Step 4: Simplify right side
    762,724.55x = 763,725,573,625.01
  5. Step 5: Solve for x
    x = 763,725,573,625.01/762,724.55
  6. Step 6: Final answer
    x = 1,001,312.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.