Home / 756,761.77-1,043,688.73-639,463.37

Finding the Fourth Proportional to 756,761.77, 1,043,688.73 and 639,463.37

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Solution

The fourth proportional to 756,761.77, 1,043,688.73 and 639,463.37 is: 881,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,761.77 : 1,043,688.73 = 639,463.37 : x
  2. Step 2: Convert to fraction form
    756,761.77/1,043,688.73 = 639,463.37/x
  3. Step 3: Cross multiply
    756,761.77x = 1,043,688.73 × 639,463.37
  4. Step 4: Simplify right side
    756,761.77x = 667,400,712,516.82
  5. Step 5: Solve for x
    x = 667,400,712,516.82/756,761.77
  6. Step 6: Final answer
    x = 881,916.53

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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.