Home / 456,823.40-685,375.23-204,316.28

Finding the Fourth Proportional to 456,823.40, 685,375.23 and 204,316.28

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Solution

The fourth proportional to 456,823.40, 685,375.23 and 204,316.28 is: 306,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,823.40 : 685,375.23 = 204,316.28 : x
  2. Step 2: Convert to fraction form
    456,823.40/685,375.23 = 204,316.28/x
  3. Step 3: Cross multiply
    456,823.40x = 685,375.23 × 204,316.28
  4. Step 4: Simplify right side
    456,823.40x = 140,033,317,397.74
  5. Step 5: Solve for x
    x = 140,033,317,397.74/456,823.40
  6. Step 6: Final answer
    x = 306,537.09

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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.