Home / 854,212.60-1,281,513.30-499,043.80

Finding the Fourth Proportional to 854,212.60, 1,281,513.30 and 499,043.80

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Solution

The fourth proportional to 854,212.60, 1,281,513.30 and 499,043.80 is: 748,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,212.60 : 1,281,513.30 = 499,043.80 : x
  2. Step 2: Convert to fraction form
    854,212.60/1,281,513.30 = 499,043.80/x
  3. Step 3: Cross multiply
    854,212.60x = 1,281,513.30 × 499,043.80
  4. Step 4: Simplify right side
    854,212.60x = 639,531,266,982.54
  5. Step 5: Solve for x
    x = 639,531,266,982.54/854,212.60
  6. Step 6: Final answer
    x = 748,679.27

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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.