Home / 817,576.20-1,226,801.70-344,309.40

Finding the Fourth Proportional to 817,576.20, 1,226,801.70 and 344,309.40

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Solution

The fourth proportional to 817,576.20, 1,226,801.70 and 344,309.40 is: 516,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,576.20 : 1,226,801.70 = 344,309.40 : x
  2. Step 2: Convert to fraction form
    817,576.20/1,226,801.70 = 344,309.40/x
  3. Step 3: Cross multiply
    817,576.20x = 1,226,801.70 × 344,309.40
  4. Step 4: Simplify right side
    817,576.20x = 422,399,357,245.98
  5. Step 5: Solve for x
    x = 422,399,357,245.98/817,576.20
  6. Step 6: Final answer
    x = 516,648.30

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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.