Home / 781,635.32-1,172,788.27-302,199.86

Finding the Fourth Proportional to 781,635.32, 1,172,788.27 and 302,199.86

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Solution

The fourth proportional to 781,635.32, 1,172,788.27 and 302,199.86 is: 453,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,635.32 : 1,172,788.27 = 302,199.86 : x
  2. Step 2: Convert to fraction form
    781,635.32/1,172,788.27 = 302,199.86/x
  3. Step 3: Cross multiply
    781,635.32x = 1,172,788.27 × 302,199.86
  4. Step 4: Simplify right side
    781,635.32x = 354,416,453,180.11
  5. Step 5: Solve for x
    x = 354,416,453,180.11/781,635.32
  6. Step 6: Final answer
    x = 453,429.43

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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.