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Finding the Fourth Proportional to 632,215.98, 872,440.34 and 345,729.92

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Solution

The fourth proportional to 632,215.98, 872,440.34 and 345,729.92 is: 477,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,215.98 : 872,440.34 = 345,729.92 : x
  2. Step 2: Convert to fraction form
    632,215.98/872,440.34 = 345,729.92/x
  3. Step 3: Cross multiply
    632,215.98x = 872,440.34 × 345,729.92
  4. Step 4: Simplify right side
    632,215.98x = 301,628,722,862.12
  5. Step 5: Solve for x
    x = 301,628,722,862.12/632,215.98
  6. Step 6: Final answer
    x = 477,097.59

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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.