Home / 1,386,123.58-2,079,382.43-426,659.19

Finding the Fourth Proportional to 1,386,123.58, 2,079,382.43 and 426,659.19

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Solution

The fourth proportional to 1,386,123.58, 2,079,382.43 and 426,659.19 is: 640,049.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,123.58 : 2,079,382.43 = 426,659.19 : x
  2. Step 2: Convert to fraction form
    1,386,123.58/2,079,382.43 = 426,659.19/x
  3. Step 3: Cross multiply
    1,386,123.58x = 2,079,382.43 × 426,659.19
  4. Step 4: Simplify right side
    1,386,123.58x = 887,187,623,284.03
  5. Step 5: Solve for x
    x = 887,187,623,284.03/1,386,123.58
  6. Step 6: Final answer
    x = 640,049.44

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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.