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Finding the Fourth Proportional to 618,318.20, 927,477.30 and 618,318.20

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Solution

The fourth proportional to 618,318.20, 927,477.30 and 618,318.20 is: 927,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,318.20 : 927,477.30 = 618,318.20 : x
  2. Step 2: Convert to fraction form
    618,318.20/927,477.30 = 618,318.20/x
  3. Step 3: Cross multiply
    618,318.20x = 927,477.30 × 618,318.20
  4. Step 4: Simplify right side
    618,318.20x = 573,476,094,676.86
  5. Step 5: Solve for x
    x = 573,476,094,676.86/618,318.20
  6. Step 6: Final answer
    x = 927,477.30

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Double scale
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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.