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Finding the Fourth Proportional to 828,752.80, 1,243,129.20 and 563,032.30

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Solution

The fourth proportional to 828,752.80, 1,243,129.20 and 563,032.30 is: 844,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,752.80 : 1,243,129.20 = 563,032.30 : x
  2. Step 2: Convert to fraction form
    828,752.80/1,243,129.20 = 563,032.30/x
  3. Step 3: Cross multiply
    828,752.80x = 1,243,129.20 × 563,032.30
  4. Step 4: Simplify right side
    828,752.80x = 699,921,892,673.16
  5. Step 5: Solve for x
    x = 699,921,892,673.16/828,752.80
  6. Step 6: Final answer
    x = 844,548.45

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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.