Home / 648,450.78-972,807.39-227,759.46

Finding the Fourth Proportional to 648,450.78, 972,807.39 and 227,759.46

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Solution

The fourth proportional to 648,450.78, 972,807.39 and 227,759.46 is: 341,685.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,450.78 : 972,807.39 = 227,759.46 : x
  2. Step 2: Convert to fraction form
    648,450.78/972,807.39 = 227,759.46/x
  3. Step 3: Cross multiply
    648,450.78x = 972,807.39 × 227,759.46
  4. Step 4: Simplify right side
    648,450.78x = 221,566,085,830.41
  5. Step 5: Solve for x
    x = 221,566,085,830.41/648,450.78
  6. Step 6: Final answer
    x = 341,685.28

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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.