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Finding the Fourth Proportional to 552,634.70, 828,952.05 and 487,316.30

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Solution

The fourth proportional to 552,634.70, 828,952.05 and 487,316.30 is: 730,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,634.70 : 828,952.05 = 487,316.30 : x
  2. Step 2: Convert to fraction form
    552,634.70/828,952.05 = 487,316.30/x
  3. Step 3: Cross multiply
    552,634.70x = 828,952.05 × 487,316.30
  4. Step 4: Simplify right side
    552,634.70x = 403,961,845,883.42
  5. Step 5: Solve for x
    x = 403,961,845,883.42/552,634.70
  6. Step 6: Final answer
    x = 730,974.45

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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.