Home / 840,576.62-1,259,814.21-540,257.90

Finding the Fourth Proportional to 840,576.62, 1,259,814.21 and 540,257.90

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Solution

The fourth proportional to 840,576.62, 1,259,814.21 and 540,257.90 is: 809,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,576.62 : 1,259,814.21 = 540,257.90 : x
  2. Step 2: Convert to fraction form
    840,576.62/1,259,814.21 = 540,257.90/x
  3. Step 3: Cross multiply
    840,576.62x = 1,259,814.21 × 540,257.90
  4. Step 4: Simplify right side
    840,576.62x = 680,624,579,484.76
  5. Step 5: Solve for x
    x = 680,624,579,484.76/840,576.62
  6. Step 6: Final answer
    x = 809,711.53

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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.