Home / 761,760.90-1,142,790.71-281,992.39

Finding the Fourth Proportional to 761,760.90, 1,142,790.71 and 281,992.39

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Solution

The fourth proportional to 761,760.90, 1,142,790.71 and 281,992.39 is: 423,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,760.90 : 1,142,790.71 = 281,992.39 : x
  2. Step 2: Convert to fraction form
    761,760.90/1,142,790.71 = 281,992.39/x
  3. Step 3: Cross multiply
    761,760.90x = 1,142,790.71 × 281,992.39
  4. Step 4: Simplify right side
    761,760.90x = 322,258,279,315.76
  5. Step 5: Solve for x
    x = 322,258,279,315.76/761,760.90
  6. Step 6: Final answer
    x = 423,043.87

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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.