Home / 500,181.62-690,316.34-285,272.42

Finding the Fourth Proportional to 500,181.62, 690,316.34 and 285,272.42

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Solution

The fourth proportional to 500,181.62, 690,316.34 and 285,272.42 is: 393,713.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,181.62 : 690,316.34 = 285,272.42 : x
  2. Step 2: Convert to fraction form
    500,181.62/690,316.34 = 285,272.42/x
  3. Step 3: Cross multiply
    500,181.62x = 690,316.34 × 285,272.42
  4. Step 4: Simplify right side
    500,181.62x = 196,928,212,877.34
  5. Step 5: Solve for x
    x = 196,928,212,877.34/500,181.62
  6. Step 6: Final answer
    x = 393,713.41

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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.