Home / 1,320,159.11-1,979,921.59-609,504.35

Finding the Fourth Proportional to 1,320,159.11, 1,979,921.59 and 609,504.35

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Solution

The fourth proportional to 1,320,159.11, 1,979,921.59 and 609,504.35 is: 914,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,159.11 : 1,979,921.59 = 609,504.35 : x
  2. Step 2: Convert to fraction form
    1,320,159.11/1,979,921.59 = 609,504.35/x
  3. Step 3: Cross multiply
    1,320,159.11x = 1,979,921.59 × 609,504.35
  4. Step 4: Simplify right side
    1,320,159.11x = 1,206,770,810,340.55
  5. Step 5: Solve for x
    x = 1,206,770,810,340.55/1,320,159.11
  6. Step 6: Final answer
    x = 914,110.13

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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.