Home / 386,315.20-579,472.80-293,003.20

Finding the Fourth Proportional to 386,315.20, 579,472.80 and 293,003.20

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Solution

The fourth proportional to 386,315.20, 579,472.80 and 293,003.20 is: 439,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,315.20 : 579,472.80 = 293,003.20 : x
  2. Step 2: Convert to fraction form
    386,315.20/579,472.80 = 293,003.20/x
  3. Step 3: Cross multiply
    386,315.20x = 579,472.80 × 293,003.20
  4. Step 4: Simplify right side
    386,315.20x = 169,787,384,712.96
  5. Step 5: Solve for x
    x = 169,787,384,712.96/386,315.20
  6. Step 6: Final answer
    x = 439,504.80

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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.