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Finding the Fourth Proportional to 552,199.40, 828,299.10 and 485,714.60

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Solution

The fourth proportional to 552,199.40, 828,299.10 and 485,714.60 is: 728,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,199.40 : 828,299.10 = 485,714.60 : x
  2. Step 2: Convert to fraction form
    552,199.40/828,299.10 = 485,714.60/x
  3. Step 3: Cross multiply
    552,199.40x = 828,299.10 × 485,714.60
  4. Step 4: Simplify right side
    552,199.40x = 402,316,966,036.86
  5. Step 5: Solve for x
    x = 402,316,966,036.86/552,199.40
  6. Step 6: Final answer
    x = 728,571.90

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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.