Home / 819,917.46-1,230,256.08-314,309.52

Finding the Fourth Proportional to 819,917.46, 1,230,256.08 and 314,309.52

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Solution

The fourth proportional to 819,917.46, 1,230,256.08 and 314,309.52 is: 471,609.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,917.46 : 1,230,256.08 = 314,309.52 : x
  2. Step 2: Convert to fraction form
    819,917.46/1,230,256.08 = 314,309.52/x
  3. Step 3: Cross multiply
    819,917.46x = 1,230,256.08 × 314,309.52
  4. Step 4: Simplify right side
    819,917.46x = 386,681,197,981.88
  5. Step 5: Solve for x
    x = 386,681,197,981.88/819,917.46
  6. Step 6: Final answer
    x = 471,609.91

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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.