Home / 667,907.60-1,001,861.40-455,331.20

Finding the Fourth Proportional to 667,907.60, 1,001,861.40 and 455,331.20

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Solution

The fourth proportional to 667,907.60, 1,001,861.40 and 455,331.20 is: 682,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,907.60 : 1,001,861.40 = 455,331.20 : x
  2. Step 2: Convert to fraction form
    667,907.60/1,001,861.40 = 455,331.20/x
  3. Step 3: Cross multiply
    667,907.60x = 1,001,861.40 × 455,331.20
  4. Step 4: Simplify right side
    667,907.60x = 456,178,753,495.68
  5. Step 5: Solve for x
    x = 456,178,753,495.68/667,907.60
  6. Step 6: Final answer
    x = 682,996.80

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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.