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Finding the Fourth Proportional to 618,325.20, 927,487.80 and 618,325.20

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Solution

The fourth proportional to 618,325.20, 927,487.80 and 618,325.20 is: 927,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,325.20 : 927,487.80 = 618,325.20 : x
  2. Step 2: Convert to fraction form
    618,325.20/927,487.80 = 618,325.20/x
  3. Step 3: Cross multiply
    618,325.20x = 927,487.80 × 618,325.20
  4. Step 4: Simplify right side
    618,325.20x = 573,489,079,432.56
  5. Step 5: Solve for x
    x = 573,489,079,432.56/618,325.20
  6. Step 6: Final answer
    x = 927,487.80

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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.