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Finding the Fourth Proportional to 552,003.30, 828,004.95 and 315,807.30

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Solution

The fourth proportional to 552,003.30, 828,004.95 and 315,807.30 is: 473,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,003.30 : 828,004.95 = 315,807.30 : x
  2. Step 2: Convert to fraction form
    552,003.30/828,004.95 = 315,807.30/x
  3. Step 3: Cross multiply
    552,003.30x = 828,004.95 × 315,807.30
  4. Step 4: Simplify right side
    552,003.30x = 261,490,007,646.14
  5. Step 5: Solve for x
    x = 261,490,007,646.14/552,003.30
  6. Step 6: Final answer
    x = 473,710.95

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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.