Home / 1,375,695.47-1,898,367.23-763,816.61

Finding the Fourth Proportional to 1,375,695.47, 1,898,367.23 and 763,816.61

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Solution

The fourth proportional to 1,375,695.47, 1,898,367.23 and 763,816.61 is: 1,054,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,695.47 : 1,898,367.23 = 763,816.61 : x
  2. Step 2: Convert to fraction form
    1,375,695.47/1,898,367.23 = 763,816.61/x
  3. Step 3: Cross multiply
    1,375,695.47x = 1,898,367.23 × 763,816.61
  4. Step 4: Simplify right side
    1,375,695.47x = 1,450,004,408,842.77
  5. Step 5: Solve for x
    x = 1,450,004,408,842.77/1,375,695.47
  6. Step 6: Final answer
    x = 1,054,015.55

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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.