Home / 987,589.02-1,362,868.62-552,005.78

Finding the Fourth Proportional to 987,589.02, 1,362,868.62 and 552,005.78

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Solution

The fourth proportional to 987,589.02, 1,362,868.62 and 552,005.78 is: 761,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,589.02 : 1,362,868.62 = 552,005.78 : x
  2. Step 2: Convert to fraction form
    987,589.02/1,362,868.62 = 552,005.78/x
  3. Step 3: Cross multiply
    987,589.02x = 1,362,868.62 × 552,005.78
  4. Step 4: Simplify right side
    987,589.02x = 752,311,355,620.62
  5. Step 5: Solve for x
    x = 752,311,355,620.62/987,589.02
  6. Step 6: Final answer
    x = 761,765.61

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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.