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Finding the Fourth Proportional to 440,510.40, 660,790.71 and 124,942.50

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Solution

The fourth proportional to 440,510.40, 660,790.71 and 124,942.50 is: 187,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,510.40 : 660,790.71 = 124,942.50 : x
  2. Step 2: Convert to fraction form
    440,510.40/660,790.71 = 124,942.50/x
  3. Step 3: Cross multiply
    440,510.40x = 660,790.71 × 124,942.50
  4. Step 4: Simplify right side
    440,510.40x = 82,560,843,284.18
  5. Step 5: Solve for x
    x = 82,560,843,284.18/440,510.40
  6. Step 6: Final answer
    x = 187,420.87

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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.