Home / 1,259,427.72-1,738,011.30-686,456.36

Finding the Fourth Proportional to 1,259,427.72, 1,738,011.30 and 686,456.36

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Solution

The fourth proportional to 1,259,427.72, 1,738,011.30 and 686,456.36 is: 947,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,427.72 : 1,738,011.30 = 686,456.36 : x
  2. Step 2: Convert to fraction form
    1,259,427.72/1,738,011.30 = 686,456.36/x
  3. Step 3: Cross multiply
    1,259,427.72x = 1,738,011.30 × 686,456.36
  4. Step 4: Simplify right side
    1,259,427.72x = 1,193,068,910,636.87
  5. Step 5: Solve for x
    x = 1,193,068,910,636.87/1,259,427.72
  6. Step 6: Final answer
    x = 947,310.35

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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.