Home / 1,278,262.32-1,763,756.16-768,997.44

Finding the Fourth Proportional to 1,278,262.32, 1,763,756.16 and 768,997.44

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Solution

The fourth proportional to 1,278,262.32, 1,763,756.16 and 768,997.44 is: 1,061,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,262.32 : 1,763,756.16 = 768,997.44 : x
  2. Step 2: Convert to fraction form
    1,278,262.32/1,763,756.16 = 768,997.44/x
  3. Step 3: Cross multiply
    1,278,262.32x = 1,763,756.16 × 768,997.44
  4. Step 4: Simplify right side
    1,278,262.32x = 1,356,323,971,824.23
  5. Step 5: Solve for x
    x = 1,356,323,971,824.23/1,278,262.32
  6. Step 6: Final answer
    x = 1,061,068.57

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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.