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Finding the Fourth Proportional to 552,370.82, 762,264.47 and 310,653.30

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Solution

The fourth proportional to 552,370.82, 762,264.47 and 310,653.30 is: 428,697.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,370.82 : 762,264.47 = 310,653.30 : x
  2. Step 2: Convert to fraction form
    552,370.82/762,264.47 = 310,653.30/x
  3. Step 3: Cross multiply
    552,370.82x = 762,264.47 × 310,653.30
  4. Step 4: Simplify right side
    552,370.82x = 236,799,973,078.25
  5. Step 5: Solve for x
    x = 236,799,973,078.25/552,370.82
  6. Step 6: Final answer
    x = 428,697.47

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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.