Home / 1,215,790.80-1,823,686.20-329,326.80

Finding the Fourth Proportional to 1,215,790.80, 1,823,686.20 and 329,326.80

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Solution

The fourth proportional to 1,215,790.80, 1,823,686.20 and 329,326.80 is: 493,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,790.80 : 1,823,686.20 = 329,326.80 : x
  2. Step 2: Convert to fraction form
    1,215,790.80/1,823,686.20 = 329,326.80/x
  3. Step 3: Cross multiply
    1,215,790.80x = 1,823,686.20 × 329,326.80
  4. Step 4: Simplify right side
    1,215,790.80x = 600,588,740,450.16
  5. Step 5: Solve for x
    x = 600,588,740,450.16/1,215,790.80
  6. Step 6: Final answer
    x = 493,990.20

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1.5x scale

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.