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Finding the Fourth Proportional to 632,483.76, 872,834.48 and 345,997.70

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Solution

The fourth proportional to 632,483.76, 872,834.48 and 345,997.70 is: 477,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,483.76 : 872,834.48 = 345,997.70 : x
  2. Step 2: Convert to fraction form
    632,483.76/872,834.48 = 345,997.70/x
  3. Step 3: Cross multiply
    632,483.76x = 872,834.48 × 345,997.70
  4. Step 4: Simplify right side
    632,483.76x = 301,998,718,196.52
  5. Step 5: Solve for x
    x = 301,998,718,196.52/632,483.76
  6. Step 6: Final answer
    x = 477,480.59

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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.