Home / 1,278,651.42-1,917,386.64-479,361.24

Finding the Fourth Proportional to 1,278,651.42, 1,917,386.64 and 479,361.24

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Solution

The fourth proportional to 1,278,651.42, 1,917,386.64 and 479,361.24 is: 718,820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,651.42 : 1,917,386.64 = 479,361.24 : x
  2. Step 2: Convert to fraction form
    1,278,651.42/1,917,386.64 = 479,361.24/x
  3. Step 3: Cross multiply
    1,278,651.42x = 1,917,386.64 × 479,361.24
  4. Step 4: Simplify right side
    1,278,651.42x = 919,120,837,309.83
  5. Step 5: Solve for x
    x = 919,120,837,309.83/1,278,651.42
  6. Step 6: Final answer
    x = 718,820.49

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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.