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Finding the Fourth Proportional to 552,548.80, 828,823.20 and 286,828.30

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Solution

The fourth proportional to 552,548.80, 828,823.20 and 286,828.30 is: 430,242.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,548.80 : 828,823.20 = 286,828.30 : x
  2. Step 2: Convert to fraction form
    552,548.80/828,823.20 = 286,828.30/x
  3. Step 3: Cross multiply
    552,548.80x = 828,823.20 × 286,828.30
  4. Step 4: Simplify right side
    552,548.80x = 237,729,949,456.56
  5. Step 5: Solve for x
    x = 237,729,949,456.56/552,548.80
  6. Step 6: Final answer
    x = 430,242.45

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Double scale
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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.