Home / 826,266.40-1,239,399.60-770,279.20

Finding the Fourth Proportional to 826,266.40, 1,239,399.60 and 770,279.20

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Solution

The fourth proportional to 826,266.40, 1,239,399.60 and 770,279.20 is: 1,155,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,266.40 : 1,239,399.60 = 770,279.20 : x
  2. Step 2: Convert to fraction form
    826,266.40/1,239,399.60 = 770,279.20/x
  3. Step 3: Cross multiply
    826,266.40x = 1,239,399.60 × 770,279.20
  4. Step 4: Simplify right side
    826,266.40x = 954,683,732,368.32
  5. Step 5: Solve for x
    x = 954,683,732,368.32/826,266.40
  6. Step 6: Final answer
    x = 1,155,418.80

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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.