Home / 823,815.40-1,234,167.90-423,092.20

Finding the Fourth Proportional to 823,815.40, 1,234,167.90 and 423,092.20

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Solution

The fourth proportional to 823,815.40, 1,234,167.90 and 423,092.20 is: 633,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,815.40 : 1,234,167.90 = 423,092.20 : x
  2. Step 2: Convert to fraction form
    823,815.40/1,234,167.90 = 423,092.20/x
  3. Step 3: Cross multiply
    823,815.40x = 1,234,167.90 × 423,092.20
  4. Step 4: Simplify right side
    823,815.40x = 522,166,811,980.38
  5. Step 5: Solve for x
    x = 522,166,811,980.38/823,815.40
  6. Step 6: Final answer
    x = 633,839.59

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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.