Home / 1,284,392.88-1,772,648.28-775,168.56

Finding the Fourth Proportional to 1,284,392.88, 1,772,648.28 and 775,168.56

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Solution

The fourth proportional to 1,284,392.88, 1,772,648.28 and 775,168.56 is: 1,069,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,392.88 : 1,772,648.28 = 775,168.56 : x
  2. Step 2: Convert to fraction form
    1,284,392.88/1,772,648.28 = 775,168.56/x
  3. Step 3: Cross multiply
    1,284,392.88x = 1,772,648.28 × 775,168.56
  4. Step 4: Simplify right side
    1,284,392.88x = 1,374,101,214,594.08
  5. Step 5: Solve for x
    x = 1,374,101,214,594.08/1,284,392.88
  6. Step 6: Final answer
    x = 1,069,844.93

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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.