Home / 769,536.40-1,152,992.40-656,687.20

Finding the Fourth Proportional to 769,536.40, 1,152,992.40 and 656,687.20

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Solution

The fourth proportional to 769,536.40, 1,152,992.40 and 656,687.20 is: 983,911.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,536.40 : 1,152,992.40 = 656,687.20 : x
  2. Step 2: Convert to fraction form
    769,536.40/1,152,992.40 = 656,687.20/x
  3. Step 3: Cross multiply
    769,536.40x = 1,152,992.40 × 656,687.20
  4. Step 4: Simplify right side
    769,536.40x = 757,155,350,777.28
  5. Step 5: Solve for x
    x = 757,155,350,777.28/769,536.40
  6. Step 6: Final answer
    x = 983,911.03

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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.