Home / 747,651.80-1,115,756.18-667,870.04

Finding the Fourth Proportional to 747,651.80, 1,115,756.18 and 667,870.04

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Solution

The fourth proportional to 747,651.80, 1,115,756.18 and 667,870.04 is: 996,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,651.80 : 1,115,756.18 = 667,870.04 : x
  2. Step 2: Convert to fraction form
    747,651.80/1,115,756.18 = 667,870.04/x
  3. Step 3: Cross multiply
    747,651.80x = 1,115,756.18 × 667,870.04
  4. Step 4: Simplify right side
    747,651.80x = 745,180,118,153.23
  5. Step 5: Solve for x
    x = 745,180,118,153.23/747,651.80
  6. Step 6: Final answer
    x = 996,694.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.