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Finding the Fourth Proportional to 665,062.80, 996,913.80 and 327,584.40

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Solution

The fourth proportional to 665,062.80, 996,913.80 and 327,584.40 is: 491,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,062.80 : 996,913.80 = 327,584.40 : x
  2. Step 2: Convert to fraction form
    665,062.80/996,913.80 = 327,584.40/x
  3. Step 3: Cross multiply
    665,062.80x = 996,913.80 × 327,584.40
  4. Step 4: Simplify right side
    665,062.80x = 326,573,409,024.72
  5. Step 5: Solve for x
    x = 326,573,409,024.72/665,062.80
  6. Step 6: Final answer
    x = 491,041.46

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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.