Home / 769,910.40-1,153,553.40-657,061.20

Finding the Fourth Proportional to 769,910.40, 1,153,553.40 and 657,061.20

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Solution

The fourth proportional to 769,910.40, 1,153,553.40 and 657,061.20 is: 984,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,910.40 : 1,153,553.40 = 657,061.20 : x
  2. Step 2: Convert to fraction form
    769,910.40/1,153,553.40 = 657,061.20/x
  3. Step 3: Cross multiply
    769,910.40x = 1,153,553.40 × 657,061.20
  4. Step 4: Simplify right side
    769,910.40x = 757,955,181,268.08
  5. Step 5: Solve for x
    x = 757,955,181,268.08/769,910.40
  6. Step 6: Final answer
    x = 984,471.94

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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.