Home / 661,689.44-992,440.24-212,352.08

Finding the Fourth Proportional to 661,689.44, 992,440.24 and 212,352.08

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Solution

The fourth proportional to 661,689.44, 992,440.24 and 212,352.08 is: 318,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,689.44 : 992,440.24 = 212,352.08 : x
  2. Step 2: Convert to fraction form
    661,689.44/992,440.24 = 212,352.08/x
  3. Step 3: Cross multiply
    661,689.44x = 992,440.24 × 212,352.08
  4. Step 4: Simplify right side
    661,689.44x = 210,746,749,239.70
  5. Step 5: Solve for x
    x = 210,746,749,239.70/661,689.44
  6. Step 6: Final answer
    x = 318,497.98

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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.