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Finding the Fourth Proportional to 449,802.96, 673,139.52 and 278,944.80

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Solution

The fourth proportional to 449,802.96, 673,139.52 and 278,944.80 is: 417,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,802.96 : 673,139.52 = 278,944.80 : x
  2. Step 2: Convert to fraction form
    449,802.96/673,139.52 = 278,944.80/x
  3. Step 3: Cross multiply
    449,802.96x = 673,139.52 × 278,944.80
  4. Step 4: Simplify right side
    449,802.96x = 187,768,768,778.50
  5. Step 5: Solve for x
    x = 187,768,768,778.50/449,802.96
  6. Step 6: Final answer
    x = 417,446.72

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1.5x scale

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.