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Finding the Fourth Proportional to 632,483.26, 872,833.79 and 345,997.20

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Solution

The fourth proportional to 632,483.26, 872,833.79 and 345,997.20 is: 477,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,483.26 : 872,833.79 = 345,997.20 : x
  2. Step 2: Convert to fraction form
    632,483.26/872,833.79 = 345,997.20/x
  3. Step 3: Cross multiply
    632,483.26x = 872,833.79 × 345,997.20
  4. Step 4: Simplify right side
    632,483.26x = 301,998,042,719.30
  5. Step 5: Solve for x
    x = 301,998,042,719.30/632,483.26
  6. Step 6: Final answer
    x = 477,479.90

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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.