Home / 393,046.20-589,569.30-126,815.40

Finding the Fourth Proportional to 393,046.20, 589,569.30 and 126,815.40

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Solution

The fourth proportional to 393,046.20, 589,569.30 and 126,815.40 is: 190,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,046.20 : 589,569.30 = 126,815.40 : x
  2. Step 2: Convert to fraction form
    393,046.20/589,569.30 = 126,815.40/x
  3. Step 3: Cross multiply
    393,046.20x = 589,569.30 × 126,815.40
  4. Step 4: Simplify right side
    393,046.20x = 74,766,466,607.22
  5. Step 5: Solve for x
    x = 74,766,466,607.22/393,046.20
  6. Step 6: Final answer
    x = 190,223.10

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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.