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Finding the Fourth Proportional to 982,866.09, 1,356,773.70 and 660,763

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Solution

The fourth proportional to 982,866.09, 1,356,773.70 and 660,763 is: 912,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,866.09 : 1,356,773.70 = 660,763 : x
  2. Step 2: Convert to fraction form
    982,866.09/1,356,773.70 = 660,763/x
  3. Step 3: Cross multiply
    982,866.09x = 1,356,773.70 × 660,763
  4. Step 4: Simplify right side
    982,866.09x = 896,505,860,333.10
  5. Step 5: Solve for x
    x = 896,505,860,333.10/982,866.09
  6. Step 6: Final answer
    x = 912,134.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.