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Finding the Fourth Proportional to 485,799.29, 670,404.21 and 270,953.27

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Solution

The fourth proportional to 485,799.29, 670,404.21 and 270,953.27 is: 373,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,799.29 : 670,404.21 = 270,953.27 : x
  2. Step 2: Convert to fraction form
    485,799.29/670,404.21 = 270,953.27/x
  3. Step 3: Cross multiply
    485,799.29x = 670,404.21 × 270,953.27
  4. Step 4: Simplify right side
    485,799.29x = 181,648,212,921.27
  5. Step 5: Solve for x
    x = 181,648,212,921.27/485,799.29
  6. Step 6: Final answer
    x = 373,916.18

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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.