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Finding the Fourth Proportional to 536,687.60, 805,031.40 and 347,730.80

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Solution

The fourth proportional to 536,687.60, 805,031.40 and 347,730.80 is: 521,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,687.60 : 805,031.40 = 347,730.80 : x
  2. Step 2: Convert to fraction form
    536,687.60/805,031.40 = 347,730.80/x
  3. Step 3: Cross multiply
    536,687.60x = 805,031.40 × 347,730.80
  4. Step 4: Simplify right side
    536,687.60x = 279,934,212,747.12
  5. Step 5: Solve for x
    x = 279,934,212,747.12/536,687.60
  6. Step 6: Final answer
    x = 521,596.20

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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.