Home / 1,386,369.80-2,079,538.18-439,748.72

Finding the Fourth Proportional to 1,386,369.80, 2,079,538.18 and 439,748.72

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Solution

The fourth proportional to 1,386,369.80, 2,079,538.18 and 439,748.72 is: 659,617.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,369.80 : 2,079,538.18 = 439,748.72 : x
  2. Step 2: Convert to fraction form
    1,386,369.80/2,079,538.18 = 439,748.72/x
  3. Step 3: Cross multiply
    1,386,369.80x = 2,079,538.18 × 439,748.72
  4. Step 4: Simplify right side
    1,386,369.80x = 914,474,252,846.13
  5. Step 5: Solve for x
    x = 914,474,252,846.13/1,386,369.80
  6. Step 6: Final answer
    x = 659,617.84

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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.