Home / 1,021,515.70-1,532,273.55-911,290.90

Finding the Fourth Proportional to 1,021,515.70, 1,532,273.55 and 911,290.90

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Solution

The fourth proportional to 1,021,515.70, 1,532,273.55 and 911,290.90 is: 1,366,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,515.70 : 1,532,273.55 = 911,290.90 : x
  2. Step 2: Convert to fraction form
    1,021,515.70/1,532,273.55 = 911,290.90/x
  3. Step 3: Cross multiply
    1,021,515.70x = 1,532,273.55 × 911,290.90
  4. Step 4: Simplify right side
    1,021,515.70x = 1,396,346,942,425.70
  5. Step 5: Solve for x
    x = 1,396,346,942,425.70/1,021,515.70
  6. Step 6: Final answer
    x = 1,366,936.35

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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.