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Finding the Fourth Proportional to 671,614.43, 926,819.21 and 365,687.30

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Solution

The fourth proportional to 671,614.43, 926,819.21 and 365,687.30 is: 504,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,614.43 : 926,819.21 = 365,687.30 : x
  2. Step 2: Convert to fraction form
    671,614.43/926,819.21 = 365,687.30/x
  3. Step 3: Cross multiply
    671,614.43x = 926,819.21 × 365,687.30
  4. Step 4: Simplify right side
    671,614.43x = 338,926,017,724.30
  5. Step 5: Solve for x
    x = 338,926,017,724.30/671,614.43
  6. Step 6: Final answer
    x = 504,643.74

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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.