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Finding the Fourth Proportional to 360,792.96, 497,565.36 and 309,789.72

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Solution

The fourth proportional to 360,792.96, 497,565.36 and 309,789.72 is: 427,227.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,792.96 : 497,565.36 = 309,789.72 : x
  2. Step 2: Convert to fraction form
    360,792.96/497,565.36 = 309,789.72/x
  3. Step 3: Cross multiply
    360,792.96x = 497,565.36 × 309,789.72
  4. Step 4: Simplify right side
    360,792.96x = 154,140,633,556.10
  5. Step 5: Solve for x
    x = 154,140,633,556.10/360,792.96
  6. Step 6: Final answer
    x = 427,227.39

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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.