Home / 1,138,077.80-1,703,430.30-887,402.60

Finding the Fourth Proportional to 1,138,077.80, 1,703,430.30 and 887,402.60

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Solution

The fourth proportional to 1,138,077.80, 1,703,430.30 and 887,402.60 is: 1,328,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,077.80 : 1,703,430.30 = 887,402.60 : x
  2. Step 2: Convert to fraction form
    1,138,077.80/1,703,430.30 = 887,402.60/x
  3. Step 3: Cross multiply
    1,138,077.80x = 1,703,430.30 × 887,402.60
  4. Step 4: Simplify right side
    1,138,077.80x = 1,511,628,477,138.78
  5. Step 5: Solve for x
    x = 1,511,628,477,138.78/1,138,077.80
  6. Step 6: Final answer
    x = 1,328,229.47

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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.