Home / 753,005.46-1,129,661.79-254,358.42

Finding the Fourth Proportional to 753,005.46, 1,129,661.79 and 254,358.42

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Solution

The fourth proportional to 753,005.46, 1,129,661.79 and 254,358.42 is: 381,589.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,005.46 : 1,129,661.79 = 254,358.42 : x
  2. Step 2: Convert to fraction form
    753,005.46/1,129,661.79 = 254,358.42/x
  3. Step 3: Cross multiply
    753,005.46x = 1,129,661.79 × 254,358.42
  4. Step 4: Simplify right side
    753,005.46x = 287,338,988,038.77
  5. Step 5: Solve for x
    x = 287,338,988,038.77/753,005.46
  6. Step 6: Final answer
    x = 381,589.51

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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.