Home / 868,081.10-1,302,121.65-299,461.10

Finding the Fourth Proportional to 868,081.10, 1,302,121.65 and 299,461.10

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Solution

The fourth proportional to 868,081.10, 1,302,121.65 and 299,461.10 is: 449,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,081.10 : 1,302,121.65 = 299,461.10 : x
  2. Step 2: Convert to fraction form
    868,081.10/1,302,121.65 = 299,461.10/x
  3. Step 3: Cross multiply
    868,081.10x = 1,302,121.65 × 299,461.10
  4. Step 4: Simplify right side
    868,081.10x = 389,934,781,642.82
  5. Step 5: Solve for x
    x = 389,934,781,642.82/868,081.10
  6. Step 6: Final answer
    x = 449,191.65

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Double scale
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Similar ratio
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1.5x scale

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.