Home / 778,839.10-1,168,258.65-512,899.90

Finding the Fourth Proportional to 778,839.10, 1,168,258.65 and 512,899.90

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Solution

The fourth proportional to 778,839.10, 1,168,258.65 and 512,899.90 is: 769,349.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,839.10 : 1,168,258.65 = 512,899.90 : x
  2. Step 2: Convert to fraction form
    778,839.10/1,168,258.65 = 512,899.90/x
  3. Step 3: Cross multiply
    778,839.10x = 1,168,258.65 × 512,899.90
  4. Step 4: Simplify right side
    778,839.10x = 599,199,744,759.14
  5. Step 5: Solve for x
    x = 599,199,744,759.14/778,839.10
  6. Step 6: Final answer
    x = 769,349.85

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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.