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Finding the Fourth Proportional to 521,837.72, 720,123.12 and 292,404.44

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Solution

The fourth proportional to 521,837.72, 720,123.12 and 292,404.44 is: 403,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,837.72 : 720,123.12 = 292,404.44 : x
  2. Step 2: Convert to fraction form
    521,837.72/720,123.12 = 292,404.44/x
  3. Step 3: Cross multiply
    521,837.72x = 720,123.12 × 292,404.44
  4. Step 4: Simplify right side
    521,837.72x = 210,567,197,634.65
  5. Step 5: Solve for x
    x = 210,567,197,634.65/521,837.72
  6. Step 6: Final answer
    x = 403,510.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.