Home / 689,626.80-1,034,731.80-437,101.20

Finding the Fourth Proportional to 689,626.80, 1,034,731.80 and 437,101.20

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Solution

The fourth proportional to 689,626.80, 1,034,731.80 and 437,101.20 is: 655,836.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,626.80 : 1,034,731.80 = 437,101.20 : x
  2. Step 2: Convert to fraction form
    689,626.80/1,034,731.80 = 437,101.20/x
  3. Step 3: Cross multiply
    689,626.80x = 1,034,731.80 × 437,101.20
  4. Step 4: Simplify right side
    689,626.80x = 452,282,511,458.16
  5. Step 5: Solve for x
    x = 452,282,511,458.16/689,626.80
  6. Step 6: Final answer
    x = 655,836.62

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1.5x scale

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.