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Finding the Fourth Proportional to 454,429.90, 627,039.51 and 263,405.98

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Solution

The fourth proportional to 454,429.90, 627,039.51 and 263,405.98 is: 363,457.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,429.90 : 627,039.51 = 263,405.98 : x
  2. Step 2: Convert to fraction form
    454,429.90/627,039.51 = 263,405.98/x
  3. Step 3: Cross multiply
    454,429.90x = 627,039.51 × 263,405.98
  4. Step 4: Simplify right side
    454,429.90x = 165,165,956,630.27
  5. Step 5: Solve for x
    x = 165,165,956,630.27/454,429.90
  6. Step 6: Final answer
    x = 363,457.50

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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.