Home / 1,290,242.88-1,935,391.12-469,553.36

Finding the Fourth Proportional to 1,290,242.88, 1,935,391.12 and 469,553.36

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Solution

The fourth proportional to 1,290,242.88, 1,935,391.12 and 469,553.36 is: 704,339.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,242.88 : 1,935,391.12 = 469,553.36 : x
  2. Step 2: Convert to fraction form
    1,290,242.88/1,935,391.12 = 469,553.36/x
  3. Step 3: Cross multiply
    1,290,242.88x = 1,935,391.12 × 469,553.36
  4. Step 4: Simplify right side
    1,290,242.88x = 908,769,403,310.16
  5. Step 5: Solve for x
    x = 908,769,403,310.16/1,290,242.88
  6. Step 6: Final answer
    x = 704,339.79

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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.