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Finding the Fourth Proportional to 461,337.21, 636,906.92 and 300,111.57

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Solution

The fourth proportional to 461,337.21, 636,906.92 and 300,111.57 is: 414,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,337.21 : 636,906.92 = 300,111.57 : x
  2. Step 2: Convert to fraction form
    461,337.21/636,906.92 = 300,111.57/x
  3. Step 3: Cross multiply
    461,337.21x = 636,906.92 × 300,111.57
  4. Step 4: Simplify right side
    461,337.21x = 191,143,134,204.51
  5. Step 5: Solve for x
    x = 191,143,134,204.51/461,337.21
  6. Step 6: Final answer
    x = 414,324.12

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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.