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Finding the Fourth Proportional to 478,230.39, 659,950.68 and 263,370.45

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Solution

The fourth proportional to 478,230.39, 659,950.68 and 263,370.45 is: 363,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,230.39 : 659,950.68 = 263,370.45 : x
  2. Step 2: Convert to fraction form
    478,230.39/659,950.68 = 263,370.45/x
  3. Step 3: Cross multiply
    478,230.39x = 659,950.68 × 263,370.45
  4. Step 4: Simplify right side
    478,230.39x = 173,811,507,569.41
  5. Step 5: Solve for x
    x = 173,811,507,569.41/478,230.39
  6. Step 6: Final answer
    x = 363,447.22

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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.