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Finding the Fourth Proportional to 408,952.80, 614,085.30 and 276,420.60

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Solution

The fourth proportional to 408,952.80, 614,085.30 and 276,420.60 is: 415,074.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,952.80 : 614,085.30 = 276,420.60 : x
  2. Step 2: Convert to fraction form
    408,952.80/614,085.30 = 276,420.60/x
  3. Step 3: Cross multiply
    408,952.80x = 614,085.30 × 276,420.60
  4. Step 4: Simplify right side
    408,952.80x = 169,745,827,077.18
  5. Step 5: Solve for x
    x = 169,745,827,077.18/408,952.80
  6. Step 6: Final answer
    x = 415,074.37

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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.