Home / 761,889.28-1,142,822.28-185,517.96

Finding the Fourth Proportional to 761,889.28, 1,142,822.28 and 185,517.96

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Solution

The fourth proportional to 761,889.28, 1,142,822.28 and 185,517.96 is: 278,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,889.28 : 1,142,822.28 = 185,517.96 : x
  2. Step 2: Convert to fraction form
    761,889.28/1,142,822.28 = 185,517.96/x
  3. Step 3: Cross multiply
    761,889.28x = 1,142,822.28 × 185,517.96
  4. Step 4: Simplify right side
    761,889.28x = 212,014,058,028.15
  5. Step 5: Solve for x
    x = 212,014,058,028.15/761,889.28
  6. Step 6: Final answer
    x = 278,274.11

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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.