Home / 1,320,084.28-1,821,404.07-747,124.45

Finding the Fourth Proportional to 1,320,084.28, 1,821,404.07 and 747,124.45

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Solution

The fourth proportional to 1,320,084.28, 1,821,404.07 and 747,124.45 is: 1,030,855.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,084.28 : 1,821,404.07 = 747,124.45 : x
  2. Step 2: Convert to fraction form
    1,320,084.28/1,821,404.07 = 747,124.45/x
  3. Step 3: Cross multiply
    1,320,084.28x = 1,821,404.07 × 747,124.45
  4. Step 4: Simplify right side
    1,320,084.28x = 1,360,815,519,104.98
  5. Step 5: Solve for x
    x = 1,360,815,519,104.98/1,320,084.28
  6. Step 6: Final answer
    x = 1,030,855.03

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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.