Home / 868,540.70-1,302,940.65-307,531.10

Finding the Fourth Proportional to 868,540.70, 1,302,940.65 and 307,531.10

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Solution

The fourth proportional to 868,540.70, 1,302,940.65 and 307,531.10 is: 461,342.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,540.70 : 1,302,940.65 = 307,531.10 : x
  2. Step 2: Convert to fraction form
    868,540.70/1,302,940.65 = 307,531.10/x
  3. Step 3: Cross multiply
    868,540.70x = 1,302,940.65 × 307,531.10
  4. Step 4: Simplify right side
    868,540.70x = 400,694,771,329.22
  5. Step 5: Solve for x
    x = 400,694,771,329.22/868,540.70
  6. Step 6: Final answer
    x = 461,342.54

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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.