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Finding the Fourth Proportional to 618,526.20, 927,659.70 and 303,209.40

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Solution

The fourth proportional to 618,526.20, 927,659.70 and 303,209.40 is: 454,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,526.20 : 927,659.70 = 303,209.40 : x
  2. Step 2: Convert to fraction form
    618,526.20/927,659.70 = 303,209.40/x
  3. Step 3: Cross multiply
    618,526.20x = 927,659.70 × 303,209.40
  4. Step 4: Simplify right side
    618,526.20x = 281,275,141,041.18
  5. Step 5: Solve for x
    x = 281,275,141,041.18/618,526.20
  6. Step 6: Final answer
    x = 454,750.57

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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.