Home / 1,378,067.52-1,901,697.72-766,188.66

Finding the Fourth Proportional to 1,378,067.52, 1,901,697.72 and 766,188.66

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Solution

The fourth proportional to 1,378,067.52, 1,901,697.72 and 766,188.66 is: 1,057,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,067.52 : 1,901,697.72 = 766,188.66 : x
  2. Step 2: Convert to fraction form
    1,378,067.52/1,901,697.72 = 766,188.66/x
  3. Step 3: Cross multiply
    1,378,067.52x = 1,901,697.72 × 766,188.66
  4. Step 4: Simplify right side
    1,378,067.52x = 1,457,059,227,811.86
  5. Step 5: Solve for x
    x = 1,457,059,227,811.86/1,378,067.52
  6. Step 6: Final answer
    x = 1,057,320.64

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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.