Home / 853,390.46-1,279,333.74-348,375.72

Finding the Fourth Proportional to 853,390.46, 1,279,333.74 and 348,375.72

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Solution

The fourth proportional to 853,390.46, 1,279,333.74 and 348,375.72 is: 522,256.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,390.46 : 1,279,333.74 = 348,375.72 : x
  2. Step 2: Convert to fraction form
    853,390.46/1,279,333.74 = 348,375.72/x
  3. Step 3: Cross multiply
    853,390.46x = 1,279,333.74 × 348,375.72
  4. Step 4: Simplify right side
    853,390.46x = 445,688,812,792.79
  5. Step 5: Solve for x
    x = 445,688,812,792.79/853,390.46
  6. Step 6: Final answer
    x = 522,256.61

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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.