Home / 810,143.91-1,214,934.32-450,863.01

Finding the Fourth Proportional to 810,143.91, 1,214,934.32 and 450,863.01

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Solution

The fourth proportional to 810,143.91, 1,214,934.32 and 450,863.01 is: 676,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,143.91 : 1,214,934.32 = 450,863.01 : x
  2. Step 2: Convert to fraction form
    810,143.91/1,214,934.32 = 450,863.01/x
  3. Step 3: Cross multiply
    810,143.91x = 1,214,934.32 × 450,863.01
  4. Step 4: Simplify right side
    810,143.91x = 547,768,945,594.66
  5. Step 5: Solve for x
    x = 547,768,945,594.66/810,143.91
  6. Step 6: Final answer
    x = 676,137.83

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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.