Home / 667,650.47-1,001,560.59-212,079.18

Finding the Fourth Proportional to 667,650.47, 1,001,560.59 and 212,079.18

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Solution

The fourth proportional to 667,650.47, 1,001,560.59 and 212,079.18 is: 318,145.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,650.47 : 1,001,560.59 = 212,079.18 : x
  2. Step 2: Convert to fraction form
    667,650.47/1,001,560.59 = 212,079.18/x
  3. Step 3: Cross multiply
    667,650.47x = 1,001,560.59 × 212,079.18
  4. Step 4: Simplify right side
    667,650.47x = 212,410,148,647.52
  5. Step 5: Solve for x
    x = 212,410,148,647.52/667,650.47
  6. Step 6: Final answer
    x = 318,145.74

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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.