Home / 820,237.20-1,230,355.80-465,943.20

Finding the Fourth Proportional to 820,237.20, 1,230,355.80 and 465,943.20

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Solution

The fourth proportional to 820,237.20, 1,230,355.80 and 465,943.20 is: 698,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,237.20 : 1,230,355.80 = 465,943.20 : x
  2. Step 2: Convert to fraction form
    820,237.20/1,230,355.80 = 465,943.20/x
  3. Step 3: Cross multiply
    820,237.20x = 1,230,355.80 × 465,943.20
  4. Step 4: Simplify right side
    820,237.20x = 573,275,918,590.56
  5. Step 5: Solve for x
    x = 573,275,918,590.56/820,237.20
  6. Step 6: Final answer
    x = 698,914.80

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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.