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Finding the Fourth Proportional to 656,443.60, 984,665.40 and 551,467.60

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Solution

The fourth proportional to 656,443.60, 984,665.40 and 551,467.60 is: 827,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,443.60 : 984,665.40 = 551,467.60 : x
  2. Step 2: Convert to fraction form
    656,443.60/984,665.40 = 551,467.60/x
  3. Step 3: Cross multiply
    656,443.60x = 984,665.40 × 551,467.60
  4. Step 4: Simplify right side
    656,443.60x = 543,011,064,941.04
  5. Step 5: Solve for x
    x = 543,011,064,941.04/656,443.60
  6. Step 6: Final answer
    x = 827,201.40

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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.