Home / 725,629.40-1,088,616.90-304,688.60

Finding the Fourth Proportional to 725,629.40, 1,088,616.90 and 304,688.60

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Solution

The fourth proportional to 725,629.40, 1,088,616.90 and 304,688.60 is: 457,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,629.40 : 1,088,616.90 = 304,688.60 : x
  2. Step 2: Convert to fraction form
    725,629.40/1,088,616.90 = 304,688.60/x
  3. Step 3: Cross multiply
    725,629.40x = 1,088,616.90 × 304,688.60
  4. Step 4: Simplify right side
    725,629.40x = 331,689,159,197.34
  5. Step 5: Solve for x
    x = 331,689,159,197.34/725,629.40
  6. Step 6: Final answer
    x = 457,105.46

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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.