Home / 1,321,145.29-1,823,150.63-769,826.89

Finding the Fourth Proportional to 1,321,145.29, 1,823,150.63 and 769,826.89

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Solution

The fourth proportional to 1,321,145.29, 1,823,150.63 and 769,826.89 is: 1,062,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,145.29 : 1,823,150.63 = 769,826.89 : x
  2. Step 2: Convert to fraction form
    1,321,145.29/1,823,150.63 = 769,826.89/x
  3. Step 3: Cross multiply
    1,321,145.29x = 1,823,150.63 × 769,826.89
  4. Step 4: Simplify right side
    1,321,145.29x = 1,403,510,373,442.72
  5. Step 5: Solve for x
    x = 1,403,510,373,442.72/1,321,145.29
  6. Step 6: Final answer
    x = 1,062,343.70

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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.