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Finding the Fourth Proportional to 552,485.20, 828,727.80 and 286,327.30

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Solution

The fourth proportional to 552,485.20, 828,727.80 and 286,327.30 is: 429,490.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,485.20 : 828,727.80 = 286,327.30 : x
  2. Step 2: Convert to fraction form
    552,485.20/828,727.80 = 286,327.30/x
  3. Step 3: Cross multiply
    552,485.20x = 828,727.80 × 286,327.30
  4. Step 4: Simplify right side
    552,485.20x = 237,287,393,408.94
  5. Step 5: Solve for x
    x = 237,287,393,408.94/552,485.20
  6. Step 6: Final answer
    x = 429,490.95

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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.