Home / 1,109,621.40-1,663,460.10-753,480.60

Finding the Fourth Proportional to 1,109,621.40, 1,663,460.10 and 753,480.60

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Solution

The fourth proportional to 1,109,621.40, 1,663,460.10 and 753,480.60 is: 1,129,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,621.40 : 1,663,460.10 = 753,480.60 : x
  2. Step 2: Convert to fraction form
    1,109,621.40/1,663,460.10 = 753,480.60/x
  3. Step 3: Cross multiply
    1,109,621.40x = 1,663,460.10 × 753,480.60
  4. Step 4: Simplify right side
    1,109,621.40x = 1,253,384,914,224.06
  5. Step 5: Solve for x
    x = 1,253,384,914,224.06/1,109,621.40
  6. Step 6: Final answer
    x = 1,129,560.87

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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.