Home / 782,245.96-1,079,410.10-438,034.04

Finding the Fourth Proportional to 782,245.96, 1,079,410.10 and 438,034.04

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Solution

The fourth proportional to 782,245.96, 1,079,410.10 and 438,034.04 is: 604,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,245.96 : 1,079,410.10 = 438,034.04 : x
  2. Step 2: Convert to fraction form
    782,245.96/1,079,410.10 = 438,034.04/x
  3. Step 3: Cross multiply
    782,245.96x = 1,079,410.10 × 438,034.04
  4. Step 4: Simplify right side
    782,245.96x = 472,818,366,919.80
  5. Step 5: Solve for x
    x = 472,818,366,919.80/782,245.96
  6. Step 6: Final answer
    x = 604,436.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.