Home / 682,442.89-941,625.20-392,090.02

Finding the Fourth Proportional to 682,442.89, 941,625.20 and 392,090.02

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Solution

The fourth proportional to 682,442.89, 941,625.20 and 392,090.02 is: 541,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,442.89 : 941,625.20 = 392,090.02 : x
  2. Step 2: Convert to fraction form
    682,442.89/941,625.20 = 392,090.02/x
  3. Step 3: Cross multiply
    682,442.89x = 941,625.20 × 392,090.02
  4. Step 4: Simplify right side
    682,442.89x = 369,201,842,126.67
  5. Step 5: Solve for x
    x = 369,201,842,126.67/682,442.89
  6. Step 6: Final answer
    x = 541,000.35

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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.