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Finding the Fourth Proportional to 551,457.52, 827,894.67 and 425,177.96

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Solution

The fourth proportional to 551,457.52, 827,894.67 and 425,177.96 is: 638,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,457.52 : 827,894.67 = 425,177.96 : x
  2. Step 2: Convert to fraction form
    551,457.52/827,894.67 = 425,177.96/x
  3. Step 3: Cross multiply
    551,457.52x = 827,894.67 × 425,177.96
  4. Step 4: Simplify right side
    551,457.52x = 352,002,568,200.12
  5. Step 5: Solve for x
    x = 352,002,568,200.12/551,457.52
  6. Step 6: Final answer
    x = 638,313.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.