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Finding the Fourth Proportional to 552,308.68, 762,213.54 and 310,667.32

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Solution

The fourth proportional to 552,308.68, 762,213.54 and 310,667.32 is: 428,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,308.68 : 762,213.54 = 310,667.32 : x
  2. Step 2: Convert to fraction form
    552,308.68/762,213.54 = 310,667.32/x
  3. Step 3: Cross multiply
    552,308.68x = 762,213.54 × 310,667.32
  4. Step 4: Simplify right side
    552,308.68x = 236,794,837,739.51
  5. Step 5: Solve for x
    x = 236,794,837,739.51/552,308.68
  6. Step 6: Final answer
    x = 428,736.40

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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.