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Finding the Fourth Proportional to 587,574.50, 811,100.88 and 396,846.20

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Solution

The fourth proportional to 587,574.50, 811,100.88 and 396,846.20 is: 547,815.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,574.50 : 811,100.88 = 396,846.20 : x
  2. Step 2: Convert to fraction form
    587,574.50/811,100.88 = 396,846.20/x
  3. Step 3: Cross multiply
    587,574.50x = 811,100.88 × 396,846.20
  4. Step 4: Simplify right side
    587,574.50x = 321,882,302,044.66
  5. Step 5: Solve for x
    x = 321,882,302,044.66/587,574.50
  6. Step 6: Final answer
    x = 547,815.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.