Home / 1,375,832.78-1,898,585.77-764,024.62

Finding the Fourth Proportional to 1,375,832.78, 1,898,585.77 and 764,024.62

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Solution

The fourth proportional to 1,375,832.78, 1,898,585.77 and 764,024.62 is: 1,054,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,832.78 : 1,898,585.77 = 764,024.62 : x
  2. Step 2: Convert to fraction form
    1,375,832.78/1,898,585.77 = 764,024.62/x
  3. Step 3: Cross multiply
    1,375,832.78x = 1,898,585.77 × 764,024.62
  4. Step 4: Simplify right side
    1,375,832.78x = 1,450,566,271,461.66
  5. Step 5: Solve for x
    x = 1,450,566,271,461.66/1,375,832.78
  6. Step 6: Final answer
    x = 1,054,318.73

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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.