Home / 1,087,484.40-1,629,671.40-800,938.80

Finding the Fourth Proportional to 1,087,484.40, 1,629,671.40 and 800,938.80

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Solution

The fourth proportional to 1,087,484.40, 1,629,671.40 and 800,938.80 is: 1,200,262.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,484.40 : 1,629,671.40 = 800,938.80 : x
  2. Step 2: Convert to fraction form
    1,087,484.40/1,629,671.40 = 800,938.80/x
  3. Step 3: Cross multiply
    1,087,484.40x = 1,629,671.40 × 800,938.80
  4. Step 4: Simplify right side
    1,087,484.40x = 1,305,267,055,510.32
  5. Step 5: Solve for x
    x = 1,305,267,055,510.32/1,087,484.40
  6. Step 6: Final answer
    x = 1,200,262.79

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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.