Home / 682,799.66-942,122.86-392,355.10

Finding the Fourth Proportional to 682,799.66, 942,122.86 and 392,355.10

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Solution

The fourth proportional to 682,799.66, 942,122.86 and 392,355.10 is: 541,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,799.66 : 942,122.86 = 392,355.10 : x
  2. Step 2: Convert to fraction form
    682,799.66/942,122.86 = 392,355.10/x
  3. Step 3: Cross multiply
    682,799.66x = 942,122.86 × 392,355.10
  4. Step 4: Simplify right side
    682,799.66x = 369,646,705,611.39
  5. Step 5: Solve for x
    x = 369,646,705,611.39/682,799.66
  6. Step 6: Final answer
    x = 541,369.20

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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.