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Finding the Fourth Proportional to 656,893.40, 984,659.70 and 356,739.80

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Solution

The fourth proportional to 656,893.40, 984,659.70 and 356,739.80 is: 534,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,893.40 : 984,659.70 = 356,739.80 : x
  2. Step 2: Convert to fraction form
    656,893.40/984,659.70 = 356,739.80/x
  3. Step 3: Cross multiply
    656,893.40x = 984,659.70 × 356,739.80
  4. Step 4: Simplify right side
    656,893.40x = 351,267,304,446.06
  5. Step 5: Solve for x
    x = 351,267,304,446.06/656,893.40
  6. Step 6: Final answer
    x = 534,740.19

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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.