Home / 1,150,154.78-1,587,219.89-667,006.38

Finding the Fourth Proportional to 1,150,154.78, 1,587,219.89 and 667,006.38

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Solution

The fourth proportional to 1,150,154.78, 1,587,219.89 and 667,006.38 is: 920,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,154.78 : 1,587,219.89 = 667,006.38 : x
  2. Step 2: Convert to fraction form
    1,150,154.78/1,587,219.89 = 667,006.38/x
  3. Step 3: Cross multiply
    1,150,154.78x = 1,587,219.89 × 667,006.38
  4. Step 4: Simplify right side
    1,150,154.78x = 1,058,685,793,092.90
  5. Step 5: Solve for x
    x = 1,058,685,793,092.90/1,150,154.78
  6. Step 6: Final answer
    x = 920,472.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.