Home / 1,259,422.70-1,737,999.18-686,462.90

Finding the Fourth Proportional to 1,259,422.70, 1,737,999.18 and 686,462.90

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Solution

The fourth proportional to 1,259,422.70, 1,737,999.18 and 686,462.90 is: 947,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,422.70 : 1,737,999.18 = 686,462.90 : x
  2. Step 2: Convert to fraction form
    1,259,422.70/1,737,999.18 = 686,462.90/x
  3. Step 3: Cross multiply
    1,259,422.70x = 1,737,999.18 × 686,462.90
  4. Step 4: Simplify right side
    1,259,422.70x = 1,193,071,948,610.43
  5. Step 5: Solve for x
    x = 1,193,071,948,610.43/1,259,422.70
  6. Step 6: Final answer
    x = 947,316.54

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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.