Home / 481,207.50-664,241.40-280,003.50

Finding the Fourth Proportional to 481,207.50, 664,241.40 and 280,003.50

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Solution

The fourth proportional to 481,207.50, 664,241.40 and 280,003.50 is: 386,506.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,207.50 : 664,241.40 = 280,003.50 : x
  2. Step 2: Convert to fraction form
    481,207.50/664,241.40 = 280,003.50/x
  3. Step 3: Cross multiply
    481,207.50x = 664,241.40 × 280,003.50
  4. Step 4: Simplify right side
    481,207.50x = 185,989,916,844.90
  5. Step 5: Solve for x
    x = 185,989,916,844.90/481,207.50
  6. Step 6: Final answer
    x = 386,506.69

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1.5x scale

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.