Home / 1,229,978.88-1,845,501.17-660,695.78

Finding the Fourth Proportional to 1,229,978.88, 1,845,501.17 and 660,695.78

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Solution

The fourth proportional to 1,229,978.88, 1,845,501.17 and 660,695.78 is: 991,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,978.88 : 1,845,501.17 = 660,695.78 : x
  2. Step 2: Convert to fraction form
    1,229,978.88/1,845,501.17 = 660,695.78/x
  3. Step 3: Cross multiply
    1,229,978.88x = 1,845,501.17 × 660,695.78
  4. Step 4: Simplify right side
    1,229,978.88x = 1,219,314,825,776.56
  5. Step 5: Solve for x
    x = 1,219,314,825,776.56/1,229,978.88
  6. Step 6: Final answer
    x = 991,329.89

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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.