Home / 842,441.85-1,162,778.67-480,080.70

Finding the Fourth Proportional to 842,441.85, 1,162,778.67 and 480,080.70

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Solution

The fourth proportional to 842,441.85, 1,162,778.67 and 480,080.70 is: 662,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,441.85 : 1,162,778.67 = 480,080.70 : x
  2. Step 2: Convert to fraction form
    842,441.85/1,162,778.67 = 480,080.70/x
  3. Step 3: Cross multiply
    842,441.85x = 1,162,778.67 × 480,080.70
  4. Step 4: Simplify right side
    842,441.85x = 558,227,597,838.67
  5. Step 5: Solve for x
    x = 558,227,597,838.67/842,441.85
  6. Step 6: Final answer
    x = 662,630.42

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.