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Finding the Fourth Proportional to 568,007.56, 783,850.39 and 313,358.75

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Solution

The fourth proportional to 568,007.56, 783,850.39 and 313,358.75 is: 432,435.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,007.56 : 783,850.39 = 313,358.75 : x
  2. Step 2: Convert to fraction form
    568,007.56/783,850.39 = 313,358.75/x
  3. Step 3: Cross multiply
    568,007.56x = 783,850.39 × 313,358.75
  4. Step 4: Simplify right side
    568,007.56x = 245,626,378,397.41
  5. Step 5: Solve for x
    x = 245,626,378,397.41/568,007.56
  6. Step 6: Final answer
    x = 432,435.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.