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Finding the Fourth Proportional to 522,054.20, 782,425.20 and 255,240.20

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Solution

The fourth proportional to 522,054.20, 782,425.20 and 255,240.20 is: 382,539.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,054.20 : 782,425.20 = 255,240.20 : x
  2. Step 2: Convert to fraction form
    522,054.20/782,425.20 = 255,240.20/x
  3. Step 3: Cross multiply
    522,054.20x = 782,425.20 × 255,240.20
  4. Step 4: Simplify right side
    522,054.20x = 199,706,364,533.04
  5. Step 5: Solve for x
    x = 199,706,364,533.04/522,054.20
  6. Step 6: Final answer
    x = 382,539.52

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Similar ratio
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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.