Home / 745,394.48-1,115,992.08-669,811.76

Finding the Fourth Proportional to 745,394.48, 1,115,992.08 and 669,811.76

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Solution

The fourth proportional to 745,394.48, 1,115,992.08 and 669,811.76 is: 1,002,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,394.48 : 1,115,992.08 = 669,811.76 : x
  2. Step 2: Convert to fraction form
    745,394.48/1,115,992.08 = 669,811.76/x
  3. Step 3: Cross multiply
    745,394.48x = 1,115,992.08 × 669,811.76
  4. Step 4: Simplify right side
    745,394.48x = 747,504,619,250.86
  5. Step 5: Solve for x
    x = 747,504,619,250.86/745,394.48
  6. Step 6: Final answer
    x = 1,002,830.90

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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.