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Finding the Fourth Proportional to 522,022.80, 783,034.20 and 272,672.40

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Solution

The fourth proportional to 522,022.80, 783,034.20 and 272,672.40 is: 409,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,022.80 : 783,034.20 = 272,672.40 : x
  2. Step 2: Convert to fraction form
    522,022.80/783,034.20 = 272,672.40/x
  3. Step 3: Cross multiply
    522,022.80x = 783,034.20 × 272,672.40
  4. Step 4: Simplify right side
    522,022.80x = 213,511,814,596.08
  5. Step 5: Solve for x
    x = 213,511,814,596.08/522,022.80
  6. Step 6: Final answer
    x = 409,008.60

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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.