Home / 647,749.75-971,749.17-248,359.38

Finding the Fourth Proportional to 647,749.75, 971,749.17 and 248,359.38

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Solution

The fourth proportional to 647,749.75, 971,749.17 and 248,359.38 is: 372,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,749.75 : 971,749.17 = 248,359.38 : x
  2. Step 2: Convert to fraction form
    647,749.75/971,749.17 = 248,359.38/x
  3. Step 3: Cross multiply
    647,749.75x = 971,749.17 × 248,359.38
  4. Step 4: Simplify right side
    647,749.75x = 241,343,016,801.31
  5. Step 5: Solve for x
    x = 241,343,016,801.31/647,749.75
  6. Step 6: Final answer
    x = 372,586.82

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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.