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Finding the Fourth Proportional to 522,291.60, 783,437.40 and 256,222.80

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Solution

The fourth proportional to 522,291.60, 783,437.40 and 256,222.80 is: 384,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,291.60 : 783,437.40 = 256,222.80 : x
  2. Step 2: Convert to fraction form
    522,291.60/783,437.40 = 256,222.80/x
  3. Step 3: Cross multiply
    522,291.60x = 783,437.40 × 256,222.80
  4. Step 4: Simplify right side
    522,291.60x = 200,734,524,252.72
  5. Step 5: Solve for x
    x = 200,734,524,252.72/522,291.60
  6. Step 6: Final answer
    x = 384,334.20

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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.