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Finding the Fourth Proportional to 518,204.05, 775,550.40 and 318,650.83

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Solution

The fourth proportional to 518,204.05, 775,550.40 and 318,650.83 is: 476,896.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,204.05 : 775,550.40 = 318,650.83 : x
  2. Step 2: Convert to fraction form
    518,204.05/775,550.40 = 318,650.83/x
  3. Step 3: Cross multiply
    518,204.05x = 775,550.40 × 318,650.83
  4. Step 4: Simplify right side
    518,204.05x = 247,129,778,666.83
  5. Step 5: Solve for x
    x = 247,129,778,666.83/518,204.05
  6. Step 6: Final answer
    x = 476,896.66

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1.5x scale

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.