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Finding the Fourth Proportional to 536,690.52, 741,282.48 and 391,266

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Solution

The fourth proportional to 536,690.52, 741,282.48 and 391,266 is: 540,420.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,690.52 : 741,282.48 = 391,266 : x
  2. Step 2: Convert to fraction form
    536,690.52/741,282.48 = 391,266/x
  3. Step 3: Cross multiply
    536,690.52x = 741,282.48 × 391,266
  4. Step 4: Simplify right side
    536,690.52x = 290,038,630,819.68
  5. Step 5: Solve for x
    x = 290,038,630,819.68/536,690.52
  6. Step 6: Final answer
    x = 540,420.63

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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.