Home / 854,230.60-1,281,540.30-499,061.80

Finding the Fourth Proportional to 854,230.60, 1,281,540.30 and 499,061.80

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Solution

The fourth proportional to 854,230.60, 1,281,540.30 and 499,061.80 is: 748,706.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,230.60 : 1,281,540.30 = 499,061.80 : x
  2. Step 2: Convert to fraction form
    854,230.60/1,281,540.30 = 499,061.80/x
  3. Step 3: Cross multiply
    854,230.60x = 1,281,540.30 × 499,061.80
  4. Step 4: Simplify right side
    854,230.60x = 639,567,808,890.54
  5. Step 5: Solve for x
    x = 639,567,808,890.54/854,230.60
  6. Step 6: Final answer
    x = 748,706.27

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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.