Home / 1,257,438.78-1,731,959.96-966,493.98

Finding the Fourth Proportional to 1,257,438.78, 1,731,959.96 and 966,493.98

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Solution

The fourth proportional to 1,257,438.78, 1,731,959.96 and 966,493.98 is: 1,331,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,438.78 : 1,731,959.96 = 966,493.98 : x
  2. Step 2: Convert to fraction form
    1,257,438.78/1,731,959.96 = 966,493.98/x
  3. Step 3: Cross multiply
    1,257,438.78x = 1,731,959.96 × 966,493.98
  4. Step 4: Simplify right side
    1,257,438.78x = 1,673,928,870,108.57
  5. Step 5: Solve for x
    x = 1,673,928,870,108.57/1,257,438.78
  6. Step 6: Final answer
    x = 1,331,220.97

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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.