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Finding the Fourth Proportional to 447,126.96, 616,722.76 and 303,637.92

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Solution

The fourth proportional to 447,126.96, 616,722.76 and 303,637.92 is: 418,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,126.96 : 616,722.76 = 303,637.92 : x
  2. Step 2: Convert to fraction form
    447,126.96/616,722.76 = 303,637.92/x
  3. Step 3: Cross multiply
    447,126.96x = 616,722.76 × 303,637.92
  4. Step 4: Simplify right side
    447,126.96x = 187,260,416,063.06
  5. Step 5: Solve for x
    x = 187,260,416,063.06/447,126.96
  6. Step 6: Final answer
    x = 418,808.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.