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Finding the Fourth Proportional to 549,969.40, 824,838.90 and 269,687.80

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Solution

The fourth proportional to 549,969.40, 824,838.90 and 269,687.80 is: 404,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,969.40 : 824,838.90 = 269,687.80 : x
  2. Step 2: Convert to fraction form
    549,969.40/824,838.90 = 269,687.80/x
  3. Step 3: Cross multiply
    549,969.40x = 824,838.90 × 269,687.80
  4. Step 4: Simplify right side
    549,969.40x = 222,448,988,295.42
  5. Step 5: Solve for x
    x = 222,448,988,295.42/549,969.40
  6. Step 6: Final answer
    x = 404,475.21

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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.