Home / 914,998.80-1,372,498.20-283,976.40

Finding the Fourth Proportional to 914,998.80, 1,372,498.20 and 283,976.40

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Solution

The fourth proportional to 914,998.80, 1,372,498.20 and 283,976.40 is: 425,964.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,998.80 : 1,372,498.20 = 283,976.40 : x
  2. Step 2: Convert to fraction form
    914,998.80/1,372,498.20 = 283,976.40/x
  3. Step 3: Cross multiply
    914,998.80x = 1,372,498.20 × 283,976.40
  4. Step 4: Simplify right side
    914,998.80x = 389,757,097,842.48
  5. Step 5: Solve for x
    x = 389,757,097,842.48/914,998.80
  6. Step 6: Final answer
    x = 425,964.60

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Half scale
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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.