Home / 758,639.78-1,138,003.50-285,329.24

Finding the Fourth Proportional to 758,639.78, 1,138,003.50 and 285,329.24

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Solution

The fourth proportional to 758,639.78, 1,138,003.50 and 285,329.24 is: 428,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,639.78 : 1,138,003.50 = 285,329.24 : x
  2. Step 2: Convert to fraction form
    758,639.78/1,138,003.50 = 285,329.24/x
  3. Step 3: Cross multiply
    758,639.78x = 1,138,003.50 × 285,329.24
  4. Step 4: Simplify right side
    758,639.78x = 324,705,668,082.32
  5. Step 5: Solve for x
    x = 324,705,668,082.32/758,639.78
  6. Step 6: Final answer
    x = 428,010.34

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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.