Home / 738,986.93-1,108,478.35-178,021.43

Finding the Fourth Proportional to 738,986.93, 1,108,478.35 and 178,021.43

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Solution

The fourth proportional to 738,986.93, 1,108,478.35 and 178,021.43 is: 267,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,986.93 : 1,108,478.35 = 178,021.43 : x
  2. Step 2: Convert to fraction form
    738,986.93/1,108,478.35 = 178,021.43/x
  3. Step 3: Cross multiply
    738,986.93x = 1,108,478.35 × 178,021.43
  4. Step 4: Simplify right side
    738,986.93x = 197,332,900,991.04
  5. Step 5: Solve for x
    x = 197,332,900,991.04/738,986.93
  6. Step 6: Final answer
    x = 267,031.65

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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.