Home / 820,063.11-1,230,050.91-221,014.65

Finding the Fourth Proportional to 820,063.11, 1,230,050.91 and 221,014.65

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Solution

The fourth proportional to 820,063.11, 1,230,050.91 and 221,014.65 is: 331,510.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,063.11 : 1,230,050.91 = 221,014.65 : x
  2. Step 2: Convert to fraction form
    820,063.11/1,230,050.91 = 221,014.65/x
  3. Step 3: Cross multiply
    820,063.11x = 1,230,050.91 × 221,014.65
  4. Step 4: Simplify right side
    820,063.11x = 271,859,271,355.83
  5. Step 5: Solve for x
    x = 271,859,271,355.83/820,063.11
  6. Step 6: Final answer
    x = 331,510.18

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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.