Home / 766,636.80-1,149,955.20-367,071.90

Finding the Fourth Proportional to 766,636.80, 1,149,955.20 and 367,071.90

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Solution

The fourth proportional to 766,636.80, 1,149,955.20 and 367,071.90 is: 550,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,636.80 : 1,149,955.20 = 367,071.90 : x
  2. Step 2: Convert to fraction form
    766,636.80/1,149,955.20 = 367,071.90/x
  3. Step 3: Cross multiply
    766,636.80x = 1,149,955.20 × 367,071.90
  4. Step 4: Simplify right side
    766,636.80x = 422,116,240,178.88
  5. Step 5: Solve for x
    x = 422,116,240,178.88/766,636.80
  6. Step 6: Final answer
    x = 550,607.85

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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.