Home / 386,554.20-579,831.30-228,701.40

Finding the Fourth Proportional to 386,554.20, 579,831.30 and 228,701.40

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Solution

The fourth proportional to 386,554.20, 579,831.30 and 228,701.40 is: 343,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,554.20 : 579,831.30 = 228,701.40 : x
  2. Step 2: Convert to fraction form
    386,554.20/579,831.30 = 228,701.40/x
  3. Step 3: Cross multiply
    386,554.20x = 579,831.30 × 228,701.40
  4. Step 4: Simplify right side
    386,554.20x = 132,608,230,073.82
  5. Step 5: Solve for x
    x = 132,608,230,073.82/386,554.20
  6. Step 6: Final answer
    x = 343,052.10

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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.