Home / 819,621.20-1,230,209.40-504,693.20

Finding the Fourth Proportional to 819,621.20, 1,230,209.40 and 504,693.20

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Solution

The fourth proportional to 819,621.20, 1,230,209.40 and 504,693.20 is: 757,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,621.20 : 1,230,209.40 = 504,693.20 : x
  2. Step 2: Convert to fraction form
    819,621.20/1,230,209.40 = 504,693.20/x
  3. Step 3: Cross multiply
    819,621.20x = 1,230,209.40 × 504,693.20
  4. Step 4: Simplify right side
    819,621.20x = 620,878,318,756.08
  5. Step 5: Solve for x
    x = 620,878,318,756.08/819,621.20
  6. Step 6: Final answer
    x = 757,518.62

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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.