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Finding the Fourth Proportional to 536,940.20, 805,410.30 and 483,487.40

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Solution

The fourth proportional to 536,940.20, 805,410.30 and 483,487.40 is: 725,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,940.20 : 805,410.30 = 483,487.40 : x
  2. Step 2: Convert to fraction form
    536,940.20/805,410.30 = 483,487.40/x
  3. Step 3: Cross multiply
    536,940.20x = 805,410.30 × 483,487.40
  4. Step 4: Simplify right side
    536,940.20x = 389,405,731,880.22
  5. Step 5: Solve for x
    x = 389,405,731,880.22/536,940.20
  6. Step 6: Final answer
    x = 725,231.10

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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.