Home / 1,386,236.08-2,079,428.10-439,679.80

Finding the Fourth Proportional to 1,386,236.08, 2,079,428.10 and 439,679.80

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Solution

The fourth proportional to 1,386,236.08, 2,079,428.10 and 439,679.80 is: 659,543.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,236.08 : 2,079,428.10 = 439,679.80 : x
  2. Step 2: Convert to fraction form
    1,386,236.08/2,079,428.10 = 439,679.80/x
  3. Step 3: Cross multiply
    1,386,236.08x = 2,079,428.10 × 439,679.80
  4. Step 4: Simplify right side
    1,386,236.08x = 914,282,531,122.38
  5. Step 5: Solve for x
    x = 914,282,531,122.38/1,386,236.08
  6. Step 6: Final answer
    x = 659,543.16

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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.