Home / 612,731.50-917,132.02-327,709.36

Finding the Fourth Proportional to 612,731.50, 917,132.02 and 327,709.36

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Solution

The fourth proportional to 612,731.50, 917,132.02 and 327,709.36 is: 490,512.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,731.50 : 917,132.02 = 327,709.36 : x
  2. Step 2: Convert to fraction form
    612,731.50/917,132.02 = 327,709.36/x
  3. Step 3: Cross multiply
    612,731.50x = 917,132.02 × 327,709.36
  4. Step 4: Simplify right side
    612,731.50x = 300,552,744,197.60
  5. Step 5: Solve for x
    x = 300,552,744,197.60/612,731.50
  6. Step 6: Final answer
    x = 490,512.97

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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.