Home / 648,196.20-972,287.90-204,964.20

Finding the Fourth Proportional to 648,196.20, 972,287.90 and 204,964.20

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Solution

The fourth proportional to 648,196.20, 972,287.90 and 204,964.20 is: 307,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,196.20 : 972,287.90 = 204,964.20 : x
  2. Step 2: Convert to fraction form
    648,196.20/972,287.90 = 204,964.20/x
  3. Step 3: Cross multiply
    648,196.20x = 972,287.90 × 204,964.20
  4. Step 4: Simplify right side
    648,196.20x = 199,284,211,593.18
  5. Step 5: Solve for x
    x = 199,284,211,593.18/648,196.20
  6. Step 6: Final answer
    x = 307,444.28

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Double scale
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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.