Home / 448,819.30-672,717.03-280,417.06

Finding the Fourth Proportional to 448,819.30, 672,717.03 and 280,417.06

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Solution

The fourth proportional to 448,819.30, 672,717.03 and 280,417.06 is: 420,305.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,819.30 : 672,717.03 = 280,417.06 : x
  2. Step 2: Convert to fraction form
    448,819.30/672,717.03 = 280,417.06/x
  3. Step 3: Cross multiply
    448,819.30x = 672,717.03 × 280,417.06
  4. Step 4: Simplify right side
    448,819.30x = 188,641,331,764.53
  5. Step 5: Solve for x
    x = 188,641,331,764.53/448,819.30
  6. Step 6: Final answer
    x = 420,305.75

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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.