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Finding the Fourth Proportional to 632,021.97, 872,190.42 and 345,542.13

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Solution

The fourth proportional to 632,021.97, 872,190.42 and 345,542.13 is: 476,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,021.97 : 872,190.42 = 345,542.13 : x
  2. Step 2: Convert to fraction form
    632,021.97/872,190.42 = 345,542.13/x
  3. Step 3: Cross multiply
    632,021.97x = 872,190.42 × 345,542.13
  4. Step 4: Simplify right side
    632,021.97x = 301,378,535,492.40
  5. Step 5: Solve for x
    x = 301,378,535,492.40/632,021.97
  6. Step 6: Final answer
    x = 476,848.19

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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.