Home / 1,120,205.40-1,680,308.10-372,251.40

Finding the Fourth Proportional to 1,120,205.40, 1,680,308.10 and 372,251.40

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Solution

The fourth proportional to 1,120,205.40, 1,680,308.10 and 372,251.40 is: 558,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,205.40 : 1,680,308.10 = 372,251.40 : x
  2. Step 2: Convert to fraction form
    1,120,205.40/1,680,308.10 = 372,251.40/x
  3. Step 3: Cross multiply
    1,120,205.40x = 1,680,308.10 × 372,251.40
  4. Step 4: Simplify right side
    1,120,205.40x = 625,497,042,656.34
  5. Step 5: Solve for x
    x = 625,497,042,656.34/1,120,205.40
  6. Step 6: Final answer
    x = 558,377.10

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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.