Home / 792,114.30-1,188,754.65-319,139.10

Finding the Fourth Proportional to 792,114.30, 1,188,754.65 and 319,139.10

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Solution

The fourth proportional to 792,114.30, 1,188,754.65 and 319,139.10 is: 478,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,114.30 : 1,188,754.65 = 319,139.10 : x
  2. Step 2: Convert to fraction form
    792,114.30/1,188,754.65 = 319,139.10/x
  3. Step 3: Cross multiply
    792,114.30x = 1,188,754.65 × 319,139.10
  4. Step 4: Simplify right side
    792,114.30x = 379,378,089,121.82
  5. Step 5: Solve for x
    x = 379,378,089,121.82/792,114.30
  6. Step 6: Final answer
    x = 478,943.62

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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.