Home / 1,280,945.31-1,767,701.26-729,660.93

Finding the Fourth Proportional to 1,280,945.31, 1,767,701.26 and 729,660.93

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Solution

The fourth proportional to 1,280,945.31, 1,767,701.26 and 729,660.93 is: 1,006,930.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,945.31 : 1,767,701.26 = 729,660.93 : x
  2. Step 2: Convert to fraction form
    1,280,945.31/1,767,701.26 = 729,660.93/x
  3. Step 3: Cross multiply
    1,280,945.31x = 1,767,701.26 × 729,660.93
  4. Step 4: Simplify right side
    1,280,945.31x = 1,289,822,545,333.77
  5. Step 5: Solve for x
    x = 1,289,822,545,333.77/1,280,945.31
  6. Step 6: Final answer
    x = 1,006,930.22

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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.