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Finding the Fourth Proportional to 618,487.40, 927,731.10 and 552,002.60

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Solution

The fourth proportional to 618,487.40, 927,731.10 and 552,002.60 is: 828,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,487.40 : 927,731.10 = 552,002.60 : x
  2. Step 2: Convert to fraction form
    618,487.40/927,731.10 = 552,002.60/x
  3. Step 3: Cross multiply
    618,487.40x = 927,731.10 × 552,002.60
  4. Step 4: Simplify right side
    618,487.40x = 512,109,979,300.86
  5. Step 5: Solve for x
    x = 512,109,979,300.86/618,487.40
  6. Step 6: Final answer
    x = 828,003.90

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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.