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Finding the Fourth Proportional to 448,958.60, 674,371.02 and 356,113.16

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Solution

The fourth proportional to 448,958.60, 674,371.02 and 356,113.16 is: 534,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,958.60 : 674,371.02 = 356,113.16 : x
  2. Step 2: Convert to fraction form
    448,958.60/674,371.02 = 356,113.16/x
  3. Step 3: Cross multiply
    448,958.60x = 674,371.02 × 356,113.16
  4. Step 4: Simplify right side
    448,958.60x = 240,152,394,944.62
  5. Step 5: Solve for x
    x = 240,152,394,944.62/448,958.60
  6. Step 6: Final answer
    x = 534,909.89

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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.