Home / 819,940.20-1,230,428.70-482,980.20

Finding the Fourth Proportional to 819,940.20, 1,230,428.70 and 482,980.20

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Solution

The fourth proportional to 819,940.20, 1,230,428.70 and 482,980.20 is: 724,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,940.20 : 1,230,428.70 = 482,980.20 : x
  2. Step 2: Convert to fraction form
    819,940.20/1,230,428.70 = 482,980.20/x
  3. Step 3: Cross multiply
    819,940.20x = 1,230,428.70 × 482,980.20
  4. Step 4: Simplify right side
    819,940.20x = 594,272,699,611.74
  5. Step 5: Solve for x
    x = 594,272,699,611.74/819,940.20
  6. Step 6: Final answer
    x = 724,775.66

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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.