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Finding the Fourth Proportional to 632,186.28, 872,416.69 and 345,706.37

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Solution

The fourth proportional to 632,186.28, 872,416.69 and 345,706.37 is: 477,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,186.28 : 872,416.69 = 345,706.37 : x
  2. Step 2: Convert to fraction form
    632,186.28/872,416.69 = 345,706.37/x
  3. Step 3: Cross multiply
    632,186.28x = 872,416.69 × 345,706.37
  4. Step 4: Simplify right side
    632,186.28x = 301,600,007,027.32
  5. Step 5: Solve for x
    x = 301,600,007,027.32/632,186.28
  6. Step 6: Final answer
    x = 477,074.58

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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.