Home / 826,936.60-1,240,404.90-815,877.40

Finding the Fourth Proportional to 826,936.60, 1,240,404.90 and 815,877.40

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Solution

The fourth proportional to 826,936.60, 1,240,404.90 and 815,877.40 is: 1,223,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,936.60 : 1,240,404.90 = 815,877.40 : x
  2. Step 2: Convert to fraction form
    826,936.60/1,240,404.90 = 815,877.40/x
  3. Step 3: Cross multiply
    826,936.60x = 1,240,404.90 × 815,877.40
  4. Step 4: Simplify right side
    826,936.60x = 1,012,018,324,759.26
  5. Step 5: Solve for x
    x = 1,012,018,324,759.26/826,936.60
  6. Step 6: Final answer
    x = 1,223,816.10

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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.