Home / 465,942.28-698,875.79-128,989.10

Finding the Fourth Proportional to 465,942.28, 698,875.79 and 128,989.10

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Solution

The fourth proportional to 465,942.28, 698,875.79 and 128,989.10 is: 193,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,942.28 : 698,875.79 = 128,989.10 : x
  2. Step 2: Convert to fraction form
    465,942.28/698,875.79 = 128,989.10/x
  3. Step 3: Cross multiply
    465,942.28x = 698,875.79 × 128,989.10
  4. Step 4: Simplify right side
    465,942.28x = 90,147,359,163.89
  5. Step 5: Solve for x
    x = 90,147,359,163.89/465,942.28
  6. Step 6: Final answer
    x = 193,473.23

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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.