Home / 1,077,015.78-1,486,772.90-767,117.88

Finding the Fourth Proportional to 1,077,015.78, 1,486,772.90 and 767,117.88

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Solution

The fourth proportional to 1,077,015.78, 1,486,772.90 and 767,117.88 is: 1,058,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,015.78 : 1,486,772.90 = 767,117.88 : x
  2. Step 2: Convert to fraction form
    1,077,015.78/1,486,772.90 = 767,117.88/x
  3. Step 3: Cross multiply
    1,077,015.78x = 1,486,772.90 × 767,117.88
  4. Step 4: Simplify right side
    1,077,015.78x = 1,140,530,077,007.25
  5. Step 5: Solve for x
    x = 1,140,530,077,007.25/1,077,015.78
  6. Step 6: Final answer
    x = 1,058,972.49

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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.