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Finding the Fourth Proportional to 506,682.78, 698,945.72 and 325,422.30

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Solution

The fourth proportional to 506,682.78, 698,945.72 and 325,422.30 is: 448,905.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,682.78 : 698,945.72 = 325,422.30 : x
  2. Step 2: Convert to fraction form
    506,682.78/698,945.72 = 325,422.30/x
  3. Step 3: Cross multiply
    506,682.78x = 698,945.72 × 325,422.30
  4. Step 4: Simplify right side
    506,682.78x = 227,452,523,777.56
  5. Step 5: Solve for x
    x = 227,452,523,777.56/506,682.78
  6. Step 6: Final answer
    x = 448,905.18

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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.