Home / 1,399,104.24-2,098,421.60-388,328.88

Finding the Fourth Proportional to 1,399,104.24, 2,098,421.60 and 388,328.88

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Solution

The fourth proportional to 1,399,104.24, 2,098,421.60 and 388,328.88 is: 582,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,104.24 : 2,098,421.60 = 388,328.88 : x
  2. Step 2: Convert to fraction form
    1,399,104.24/2,098,421.60 = 388,328.88/x
  3. Step 3: Cross multiply
    1,399,104.24x = 2,098,421.60 × 388,328.88
  4. Step 4: Simplify right side
    1,399,104.24x = 814,877,715,623.25
  5. Step 5: Solve for x
    x = 814,877,715,623.25/1,399,104.24
  6. Step 6: Final answer
    x = 582,428.17

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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.