Home / 754,479.70-1,131,719.85-185,871.86

Finding the Fourth Proportional to 754,479.70, 1,131,719.85 and 185,871.86

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Solution

The fourth proportional to 754,479.70, 1,131,719.85 and 185,871.86 is: 278,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,479.70 : 1,131,719.85 = 185,871.86 : x
  2. Step 2: Convert to fraction form
    754,479.70/1,131,719.85 = 185,871.86/x
  3. Step 3: Cross multiply
    754,479.70x = 1,131,719.85 × 185,871.86
  4. Step 4: Simplify right side
    754,479.70x = 210,354,872,975.05
  5. Step 5: Solve for x
    x = 210,354,872,975.05/754,479.70
  6. Step 6: Final answer
    x = 278,807.86

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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.