Home / 1,467,139.80-2,200,709.70-991,248.60

Finding the Fourth Proportional to 1,467,139.80, 2,200,709.70 and 991,248.60

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Solution

The fourth proportional to 1,467,139.80, 2,200,709.70 and 991,248.60 is: 1,486,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,467,139.80 : 2,200,709.70 = 991,248.60 : x
  2. Step 2: Convert to fraction form
    1,467,139.80/2,200,709.70 = 991,248.60/x
  3. Step 3: Cross multiply
    1,467,139.80x = 2,200,709.70 × 991,248.60
  4. Step 4: Simplify right side
    1,467,139.80x = 2,181,450,409,131.42
  5. Step 5: Solve for x
    x = 2,181,450,409,131.42/1,467,139.80
  6. Step 6: Final answer
    x = 1,486,872.90

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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.