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Finding the Fourth Proportional to 555,542.76, 766,650.24 and 300,894

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Solution

The fourth proportional to 555,542.76, 766,650.24 and 300,894 is: 415,234.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,542.76 : 766,650.24 = 300,894 : x
  2. Step 2: Convert to fraction form
    555,542.76/766,650.24 = 300,894/x
  3. Step 3: Cross multiply
    555,542.76x = 766,650.24 × 300,894
  4. Step 4: Simplify right side
    555,542.76x = 230,680,457,314.56
  5. Step 5: Solve for x
    x = 230,680,457,314.56/555,542.76
  6. Step 6: Final answer
    x = 415,234.39

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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.