Home / 667,837.89-1,001,746.11-212,422.50

Finding the Fourth Proportional to 667,837.89, 1,001,746.11 and 212,422.50

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Solution

The fourth proportional to 667,837.89, 1,001,746.11 and 212,422.50 is: 318,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,837.89 : 1,001,746.11 = 212,422.50 : x
  2. Step 2: Convert to fraction form
    667,837.89/1,001,746.11 = 212,422.50/x
  3. Step 3: Cross multiply
    667,837.89x = 1,001,746.11 × 212,422.50
  4. Step 4: Simplify right side
    667,837.89x = 212,793,413,051.48
  5. Step 5: Solve for x
    x = 212,793,413,051.48/667,837.89
  6. Step 6: Final answer
    x = 318,630.34

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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.