Home / 828,935.30-1,243,402.88-229,896.45

Finding the Fourth Proportional to 828,935.30, 1,243,402.88 and 229,896.45

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Solution

The fourth proportional to 828,935.30, 1,243,402.88 and 229,896.45 is: 344,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,935.30 : 1,243,402.88 = 229,896.45 : x
  2. Step 2: Convert to fraction form
    828,935.30/1,243,402.88 = 229,896.45/x
  3. Step 3: Cross multiply
    828,935.30x = 1,243,402.88 × 229,896.45
  4. Step 4: Simplify right side
    828,935.30x = 285,853,904,031.81
  5. Step 5: Solve for x
    x = 285,853,904,031.81/828,935.30
  6. Step 6: Final answer
    x = 344,844.65

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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.