Home / 632,486.60-873,091.20-428,816.48

Finding the Fourth Proportional to 632,486.60, 873,091.20 and 428,816.48

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Solution

The fourth proportional to 632,486.60, 873,091.20 and 428,816.48 is: 591,942.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,486.60 : 873,091.20 = 428,816.48 : x
  2. Step 2: Convert to fraction form
    632,486.60/873,091.20 = 428,816.48/x
  3. Step 3: Cross multiply
    632,486.60x = 873,091.20 × 428,816.48
  4. Step 4: Simplify right side
    632,486.60x = 374,395,895,102.98
  5. Step 5: Solve for x
    x = 374,395,895,102.98/632,486.60
  6. Step 6: Final answer
    x = 591,942.81

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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.