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Finding the Fourth Proportional to 656,468.80, 984,832.80 and 552,011.20

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Solution

The fourth proportional to 656,468.80, 984,832.80 and 552,011.20 is: 828,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,468.80 : 984,832.80 = 552,011.20 : x
  2. Step 2: Convert to fraction form
    656,468.80/984,832.80 = 552,011.20/x
  3. Step 3: Cross multiply
    656,468.80x = 984,832.80 × 552,011.20
  4. Step 4: Simplify right side
    656,468.80x = 543,638,735,727.36
  5. Step 5: Solve for x
    x = 543,638,735,727.36/656,468.80
  6. Step 6: Final answer
    x = 828,125.78

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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.