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Finding the Fourth Proportional to 400,580.81, 600,871.21 and 134,340.56

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Solution

The fourth proportional to 400,580.81, 600,871.21 and 134,340.56 is: 201,510.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,580.81 : 600,871.21 = 134,340.56 : x
  2. Step 2: Convert to fraction form
    400,580.81/600,871.21 = 134,340.56/x
  3. Step 3: Cross multiply
    400,580.81x = 600,871.21 × 134,340.56
  4. Step 4: Simplify right side
    400,580.81x = 80,721,371,834.92
  5. Step 5: Solve for x
    x = 80,721,371,834.92/400,580.81
  6. Step 6: Final answer
    x = 201,510.83

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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.