Home / 712,998.40-1,069,458.24-239,634.88

Finding the Fourth Proportional to 712,998.40, 1,069,458.24 and 239,634.88

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Solution

The fourth proportional to 712,998.40, 1,069,458.24 and 239,634.88 is: 359,439.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,998.40 : 1,069,458.24 = 239,634.88 : x
  2. Step 2: Convert to fraction form
    712,998.40/1,069,458.24 = 239,634.88/x
  3. Step 3: Cross multiply
    712,998.40x = 1,069,458.24 × 239,634.88
  4. Step 4: Simplify right side
    712,998.40x = 256,279,497,007.41
  5. Step 5: Solve for x
    x = 256,279,497,007.41/712,998.40
  6. Step 6: Final answer
    x = 359,439.09

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Double scale
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Similar ratio
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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.