Home / 1,069,288.60-1,603,932.90-998,429.80

Finding the Fourth Proportional to 1,069,288.60, 1,603,932.90 and 998,429.80

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Solution

The fourth proportional to 1,069,288.60, 1,603,932.90 and 998,429.80 is: 1,497,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,288.60 : 1,603,932.90 = 998,429.80 : x
  2. Step 2: Convert to fraction form
    1,069,288.60/1,603,932.90 = 998,429.80/x
  3. Step 3: Cross multiply
    1,069,288.60x = 1,603,932.90 × 998,429.80
  4. Step 4: Simplify right side
    1,069,288.60x = 1,601,414,404,560.42
  5. Step 5: Solve for x
    x = 1,601,414,404,560.42/1,069,288.60
  6. Step 6: Final answer
    x = 1,497,644.70

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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.