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Finding the Fourth Proportional to 618,221.60, 927,946.80 and 303,034.40

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Solution

The fourth proportional to 618,221.60, 927,946.80 and 303,034.40 is: 454,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,221.60 : 927,946.80 = 303,034.40 : x
  2. Step 2: Convert to fraction form
    618,221.60/927,946.80 = 303,034.40/x
  3. Step 3: Cross multiply
    618,221.60x = 927,946.80 × 303,034.40
  4. Step 4: Simplify right side
    618,221.60x = 281,199,801,769.92
  5. Step 5: Solve for x
    x = 281,199,801,769.92/618,221.60
  6. Step 6: Final answer
    x = 454,852.76

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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.