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Finding the Fourth Proportional to 618,484.80, 927,727.20 and 303,556.80

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Solution

The fourth proportional to 618,484.80, 927,727.20 and 303,556.80 is: 455,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,484.80 : 927,727.20 = 303,556.80 : x
  2. Step 2: Convert to fraction form
    618,484.80/927,727.20 = 303,556.80/x
  3. Step 3: Cross multiply
    618,484.80x = 927,727.20 × 303,556.80
  4. Step 4: Simplify right side
    618,484.80x = 281,617,900,104.96
  5. Step 5: Solve for x
    x = 281,617,900,104.96/618,484.80
  6. Step 6: Final answer
    x = 455,335.20

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Similar ratio
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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.