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Finding the Fourth Proportional to 506,141.40, 760,086.90 and 329,431.80

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Solution

The fourth proportional to 506,141.40, 760,086.90 and 329,431.80 is: 494,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,141.40 : 760,086.90 = 329,431.80 : x
  2. Step 2: Convert to fraction form
    506,141.40/760,086.90 = 329,431.80/x
  3. Step 3: Cross multiply
    506,141.40x = 760,086.90 × 329,431.80
  4. Step 4: Simplify right side
    506,141.40x = 250,396,795,623.42
  5. Step 5: Solve for x
    x = 250,396,795,623.42/506,141.40
  6. Step 6: Final answer
    x = 494,717.08

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1.5x scale

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.