Home / 825,821.61-1,238,855.54-293,297.91

Finding the Fourth Proportional to 825,821.61, 1,238,855.54 and 293,297.91

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Solution

The fourth proportional to 825,821.61, 1,238,855.54 and 293,297.91 is: 439,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,821.61 : 1,238,855.54 = 293,297.91 : x
  2. Step 2: Convert to fraction form
    825,821.61/1,238,855.54 = 293,297.91/x
  3. Step 3: Cross multiply
    825,821.61x = 1,238,855.54 × 293,297.91
  4. Step 4: Simplify right side
    825,821.61x = 363,353,740,673.92
  5. Step 5: Solve for x
    x = 363,353,740,673.92/825,821.61
  6. Step 6: Final answer
    x = 439,990.59

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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.