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Finding the Fourth Proportional to 379,327.68, 522,823.68 and 294,284.16

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Solution

The fourth proportional to 379,327.68, 522,823.68 and 294,284.16 is: 405,609.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,327.68 : 522,823.68 = 294,284.16 : x
  2. Step 2: Convert to fraction form
    379,327.68/522,823.68 = 294,284.16/x
  3. Step 3: Cross multiply
    379,327.68x = 522,823.68 × 294,284.16
  4. Step 4: Simplify right side
    379,327.68x = 153,858,727,496.91
  5. Step 5: Solve for x
    x = 153,858,727,496.91/379,327.68
  6. Step 6: Final answer
    x = 405,609.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.