Home / 1,257,876.31-1,735,897.80-713,961.21

Finding the Fourth Proportional to 1,257,876.31, 1,735,897.80 and 713,961.21

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Solution

The fourth proportional to 1,257,876.31, 1,735,897.80 and 713,961.21 is: 985,282.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,876.31 : 1,735,897.80 = 713,961.21 : x
  2. Step 2: Convert to fraction form
    1,257,876.31/1,735,897.80 = 713,961.21/x
  3. Step 3: Cross multiply
    1,257,876.31x = 1,735,897.80 × 713,961.21
  4. Step 4: Simplify right side
    1,257,876.31x = 1,239,363,693,724.34
  5. Step 5: Solve for x
    x = 1,239,363,693,724.34/1,257,876.31
  6. Step 6: Final answer
    x = 985,282.64

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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.