Home / 1,515,474.36-2,091,350.34-836,406

Finding the Fourth Proportional to 1,515,474.36, 2,091,350.34 and 836,406

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Solution

The fourth proportional to 1,515,474.36, 2,091,350.34 and 836,406 is: 1,154,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,474.36 : 2,091,350.34 = 836,406 : x
  2. Step 2: Convert to fraction form
    1,515,474.36/2,091,350.34 = 836,406/x
  3. Step 3: Cross multiply
    1,515,474.36x = 2,091,350.34 × 836,406
  4. Step 4: Simplify right side
    1,515,474.36x = 1,749,217,972,478.04
  5. Step 5: Solve for x
    x = 1,749,217,972,478.04/1,515,474.36
  6. Step 6: Final answer
    x = 1,154,237.92

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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.