Home / 1,086,308.70-1,499,836.95-831,204.06

Finding the Fourth Proportional to 1,086,308.70, 1,499,836.95 and 831,204.06

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Solution

The fourth proportional to 1,086,308.70, 1,499,836.95 and 831,204.06 is: 1,147,620.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,308.70 : 1,499,836.95 = 831,204.06 : x
  2. Step 2: Convert to fraction form
    1,086,308.70/1,499,836.95 = 831,204.06/x
  3. Step 3: Cross multiply
    1,086,308.70x = 1,499,836.95 × 831,204.06
  4. Step 4: Simplify right side
    1,086,308.70x = 1,246,670,562,178.02
  5. Step 5: Solve for x
    x = 1,246,670,562,178.02/1,086,308.70
  6. Step 6: Final answer
    x = 1,147,620.89

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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.