Home / 718,214.40-1,077,578.64-307,711.44

Finding the Fourth Proportional to 718,214.40, 1,077,578.64 and 307,711.44

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Solution

The fourth proportional to 718,214.40, 1,077,578.64 and 307,711.44 is: 461,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,214.40 : 1,077,578.64 = 307,711.44 : x
  2. Step 2: Convert to fraction form
    718,214.40/1,077,578.64 = 307,711.44/x
  3. Step 3: Cross multiply
    718,214.40x = 1,077,578.64 × 307,711.44
  4. Step 4: Simplify right side
    718,214.40x = 331,583,275,027.64
  5. Step 5: Solve for x
    x = 331,583,275,027.64/718,214.40
  6. Step 6: Final answer
    x = 461,677.29

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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.