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Finding the Fourth Proportional to 614,620.54, 921,921.63 and 374,804.92

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Solution

The fourth proportional to 614,620.54, 921,921.63 and 374,804.92 is: 562,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,620.54 : 921,921.63 = 374,804.92 : x
  2. Step 2: Convert to fraction form
    614,620.54/921,921.63 = 374,804.92/x
  3. Step 3: Cross multiply
    614,620.54x = 921,921.63 × 374,804.92
  4. Step 4: Simplify right side
    614,620.54x = 345,540,762,778.42
  5. Step 5: Solve for x
    x = 345,540,762,778.42/614,620.54
  6. Step 6: Final answer
    x = 562,201.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.