Home / 386,546.72-579,874.74-120,334.10

Finding the Fourth Proportional to 386,546.72, 579,874.74 and 120,334.10

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Solution

The fourth proportional to 386,546.72, 579,874.74 and 120,334.10 is: 180,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,546.72 : 579,874.74 = 120,334.10 : x
  2. Step 2: Convert to fraction form
    386,546.72/579,874.74 = 120,334.10/x
  3. Step 3: Cross multiply
    386,546.72x = 579,874.74 × 120,334.10
  4. Step 4: Simplify right side
    386,546.72x = 69,778,704,950.63
  5. Step 5: Solve for x
    x = 69,778,704,950.63/386,546.72
  6. Step 6: Final answer
    x = 180,518.17

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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.