Home / 871,132.20-1,306,863.72-302,491.32

Finding the Fourth Proportional to 871,132.20, 1,306,863.72 and 302,491.32

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Solution

The fourth proportional to 871,132.20, 1,306,863.72 and 302,491.32 is: 453,794.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,132.20 : 1,306,863.72 = 302,491.32 : x
  2. Step 2: Convert to fraction form
    871,132.20/1,306,863.72 = 302,491.32/x
  3. Step 3: Cross multiply
    871,132.20x = 1,306,863.72 × 302,491.32
  4. Step 4: Simplify right side
    871,132.20x = 395,314,931,722.91
  5. Step 5: Solve for x
    x = 395,314,931,722.91/871,132.20
  6. Step 6: Final answer
    x = 453,794.42

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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.