Home / 419,987.35-579,583.11-229,000.74

Finding the Fourth Proportional to 419,987.35, 579,583.11 and 229,000.74

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Solution

The fourth proportional to 419,987.35, 579,583.11 and 229,000.74 is: 316,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,987.35 : 579,583.11 = 229,000.74 : x
  2. Step 2: Convert to fraction form
    419,987.35/579,583.11 = 229,000.74/x
  3. Step 3: Cross multiply
    419,987.35x = 579,583.11 × 229,000.74
  4. Step 4: Simplify right side
    419,987.35x = 132,724,961,081.50
  5. Step 5: Solve for x
    x = 132,724,961,081.50/419,987.35
  6. Step 6: Final answer
    x = 316,021.33

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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.