Home / 649,717.62-974,576.43-317,008.50

Finding the Fourth Proportional to 649,717.62, 974,576.43 and 317,008.50

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Solution

The fourth proportional to 649,717.62, 974,576.43 and 317,008.50 is: 475,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,717.62 : 974,576.43 = 317,008.50 : x
  2. Step 2: Convert to fraction form
    649,717.62/974,576.43 = 317,008.50/x
  3. Step 3: Cross multiply
    649,717.62x = 974,576.43 × 317,008.50
  4. Step 4: Simplify right side
    649,717.62x = 308,949,012,209.66
  5. Step 5: Solve for x
    x = 308,949,012,209.66/649,717.62
  6. Step 6: Final answer
    x = 475,512.75

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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.