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Finding the Fourth Proportional to 608,411.80, 913,136.10 and 271,970.20

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Solution

The fourth proportional to 608,411.80, 913,136.10 and 271,970.20 is: 408,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,411.80 : 913,136.10 = 271,970.20 : x
  2. Step 2: Convert to fraction form
    608,411.80/913,136.10 = 271,970.20/x
  3. Step 3: Cross multiply
    608,411.80x = 913,136.10 × 271,970.20
  4. Step 4: Simplify right side
    608,411.80x = 248,345,807,744.22
  5. Step 5: Solve for x
    x = 248,345,807,744.22/608,411.80
  6. Step 6: Final answer
    x = 408,187.03

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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.