Home / 820,167.20-1,230,250.80-459,968.30

Finding the Fourth Proportional to 820,167.20, 1,230,250.80 and 459,968.30

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Solution

The fourth proportional to 820,167.20, 1,230,250.80 and 459,968.30 is: 689,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,167.20 : 1,230,250.80 = 459,968.30 : x
  2. Step 2: Convert to fraction form
    820,167.20/1,230,250.80 = 459,968.30/x
  3. Step 3: Cross multiply
    820,167.20x = 1,230,250.80 × 459,968.30
  4. Step 4: Simplify right side
    820,167.20x = 565,876,369,049.64
  5. Step 5: Solve for x
    x = 565,876,369,049.64/820,167.20
  6. Step 6: Final answer
    x = 689,952.45

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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.