Home / 471,890.75-707,566.25-219,041.15

Finding the Fourth Proportional to 471,890.75, 707,566.25 and 219,041.15

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Solution

The fourth proportional to 471,890.75, 707,566.25 and 219,041.15 is: 328,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,890.75 : 707,566.25 = 219,041.15 : x
  2. Step 2: Convert to fraction form
    471,890.75/707,566.25 = 219,041.15/x
  3. Step 3: Cross multiply
    471,890.75x = 707,566.25 × 219,041.15
  4. Step 4: Simplify right side
    471,890.75x = 154,986,122,110.96
  5. Step 5: Solve for x
    x = 154,986,122,110.96/471,890.75
  6. Step 6: Final answer
    x = 328,436.45

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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.