Home / 1,399,104.01-2,098,421.24-388,328.65

Finding the Fourth Proportional to 1,399,104.01, 2,098,421.24 and 388,328.65

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Solution

The fourth proportional to 1,399,104.01, 2,098,421.24 and 388,328.65 is: 582,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,104.01 : 2,098,421.24 = 388,328.65 : x
  2. Step 2: Convert to fraction form
    1,399,104.01/2,098,421.24 = 388,328.65/x
  3. Step 3: Cross multiply
    1,399,104.01x = 2,098,421.24 × 388,328.65
  4. Step 4: Simplify right side
    1,399,104.01x = 814,877,082,985.30
  5. Step 5: Solve for x
    x = 814,877,082,985.30/1,399,104.01
  6. Step 6: Final answer
    x = 582,427.81

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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.