Home / 1,386,034.04-2,079,125.47-439,478.56

Finding the Fourth Proportional to 1,386,034.04, 2,079,125.47 and 439,478.56

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Solution

The fourth proportional to 1,386,034.04, 2,079,125.47 and 439,478.56 is: 659,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,034.04 : 2,079,125.47 = 439,478.56 : x
  2. Step 2: Convert to fraction form
    1,386,034.04/2,079,125.47 = 439,478.56/x
  3. Step 3: Cross multiply
    1,386,034.04x = 2,079,125.47 × 439,478.56
  4. Step 4: Simplify right side
    1,386,034.04x = 913,731,067,614.92
  5. Step 5: Solve for x
    x = 913,731,067,614.92/1,386,034.04
  6. Step 6: Final answer
    x = 659,241.43

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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.