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Finding the Fourth Proportional to 528,422.80, 792,634.20 and 247,968.40

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Solution

The fourth proportional to 528,422.80, 792,634.20 and 247,968.40 is: 371,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,422.80 : 792,634.20 = 247,968.40 : x
  2. Step 2: Convert to fraction form
    528,422.80/792,634.20 = 247,968.40/x
  3. Step 3: Cross multiply
    528,422.80x = 792,634.20 × 247,968.40
  4. Step 4: Simplify right side
    528,422.80x = 196,548,234,359.28
  5. Step 5: Solve for x
    x = 196,548,234,359.28/528,422.80
  6. Step 6: Final answer
    x = 371,952.60

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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.