Home / 1,215,091.30-1,822,630.35-495,430.20

Finding the Fourth Proportional to 1,215,091.30, 1,822,630.35 and 495,430.20

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Solution

The fourth proportional to 1,215,091.30, 1,822,630.35 and 495,430.20 is: 743,142.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,091.30 : 1,822,630.35 = 495,430.20 : x
  2. Step 2: Convert to fraction form
    1,215,091.30/1,822,630.35 = 495,430.20/x
  3. Step 3: Cross multiply
    1,215,091.30x = 1,822,630.35 × 495,430.20
  4. Step 4: Simplify right side
    1,215,091.30x = 902,986,118,826.57
  5. Step 5: Solve for x
    x = 902,986,118,826.57/1,215,091.30
  6. Step 6: Final answer
    x = 743,142.61

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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.