Home / 1,078,747.40-1,615,010.70-658,843.40

Finding the Fourth Proportional to 1,078,747.40, 1,615,010.70 and 658,843.40

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Solution

The fourth proportional to 1,078,747.40, 1,615,010.70 and 658,843.40 is: 986,365.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,747.40 : 1,615,010.70 = 658,843.40 : x
  2. Step 2: Convert to fraction form
    1,078,747.40/1,615,010.70 = 658,843.40/x
  3. Step 3: Cross multiply
    1,078,747.40x = 1,615,010.70 × 658,843.40
  4. Step 4: Simplify right side
    1,078,747.40x = 1,064,039,140,624.38
  5. Step 5: Solve for x
    x = 1,064,039,140,624.38/1,078,747.40
  6. Step 6: Final answer
    x = 986,365.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.