Home / 3,991,079-5,986,670.34-1,331,687

Finding the Fourth Proportional to 3,991,079, 5,986,670.34 and 1,331,687

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Solution

The fourth proportional to 3,991,079, 5,986,670.34 and 1,331,687 is: 1,997,547.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,079 : 5,986,670.34 = 1,331,687 : x
  2. Step 2: Convert to fraction form
    3,991,079/5,986,670.34 = 1,331,687/x
  3. Step 3: Cross multiply
    3,991,079x = 5,986,670.34 × 1,331,687
  4. Step 4: Simplify right side
    3,991,079x = 7,972,371,065,063.58
  5. Step 5: Solve for x
    x = 7,972,371,065,063.58/3,991,079
  6. Step 6: Final answer
    x = 1,997,547.80

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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.