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Finding the Fourth Proportional to 632,005.89, 872,168.07 and 345,525.90

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Solution

The fourth proportional to 632,005.89, 872,168.07 and 345,525.90 is: 476,825.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,005.89 : 872,168.07 = 345,525.90 : x
  2. Step 2: Convert to fraction form
    632,005.89/872,168.07 = 345,525.90/x
  3. Step 3: Cross multiply
    632,005.89x = 872,168.07 × 345,525.90
  4. Step 4: Simplify right side
    632,005.89x = 301,356,657,338.01
  5. Step 5: Solve for x
    x = 301,356,657,338.01/632,005.89
  6. Step 6: Final answer
    x = 476,825.71

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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.