Home / 763,706.20-1,145,559.30-587,104.60

Finding the Fourth Proportional to 763,706.20, 1,145,559.30 and 587,104.60

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Solution

The fourth proportional to 763,706.20, 1,145,559.30 and 587,104.60 is: 880,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,706.20 : 1,145,559.30 = 587,104.60 : x
  2. Step 2: Convert to fraction form
    763,706.20/1,145,559.30 = 587,104.60/x
  3. Step 3: Cross multiply
    763,706.20x = 1,145,559.30 × 587,104.60
  4. Step 4: Simplify right side
    763,706.20x = 672,563,134,602.78
  5. Step 5: Solve for x
    x = 672,563,134,602.78/763,706.20
  6. Step 6: Final answer
    x = 880,656.90

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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.