Home / 826,803.60-1,240,205.40-815,744.40

Finding the Fourth Proportional to 826,803.60, 1,240,205.40 and 815,744.40

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Solution

The fourth proportional to 826,803.60, 1,240,205.40 and 815,744.40 is: 1,223,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,803.60 : 1,240,205.40 = 815,744.40 : x
  2. Step 2: Convert to fraction form
    826,803.60/1,240,205.40 = 815,744.40/x
  3. Step 3: Cross multiply
    826,803.60x = 1,240,205.40 × 815,744.40
  4. Step 4: Simplify right side
    826,803.60x = 1,011,690,609,899.76
  5. Step 5: Solve for x
    x = 1,011,690,609,899.76/826,803.60
  6. Step 6: Final answer
    x = 1,223,616.60

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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.