Home / 1,088,780.80-1,631,202.90-667,564.60

Finding the Fourth Proportional to 1,088,780.80, 1,631,202.90 and 667,564.60

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Solution

The fourth proportional to 1,088,780.80, 1,631,202.90 and 667,564.60 is: 1,000,140.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,780.80 : 1,631,202.90 = 667,564.60 : x
  2. Step 2: Convert to fraction form
    1,088,780.80/1,631,202.90 = 667,564.60/x
  3. Step 3: Cross multiply
    1,088,780.80x = 1,631,202.90 × 667,564.60
  4. Step 4: Simplify right side
    1,088,780.80x = 1,088,933,311,457.34
  5. Step 5: Solve for x
    x = 1,088,933,311,457.34/1,088,780.80
  6. Step 6: Final answer
    x = 1,000,140.08

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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.