Home / 749,992.20-1,121,707.80-670,604.10

Finding the Fourth Proportional to 749,992.20, 1,121,707.80 and 670,604.10

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Solution

The fourth proportional to 749,992.20, 1,121,707.80 and 670,604.10 is: 1,002,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,992.20 : 1,121,707.80 = 670,604.10 : x
  2. Step 2: Convert to fraction form
    749,992.20/1,121,707.80 = 670,604.10/x
  3. Step 3: Cross multiply
    749,992.20x = 1,121,707.80 × 670,604.10
  4. Step 4: Simplify right side
    749,992.20x = 752,221,849,681.98
  5. Step 5: Solve for x
    x = 752,221,849,681.98/749,992.20
  6. Step 6: Final answer
    x = 1,002,972.90

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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.