Home / 1,342,221.78-1,852,345.78-769,298.96

Finding the Fourth Proportional to 1,342,221.78, 1,852,345.78 and 769,298.96

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Solution

The fourth proportional to 1,342,221.78, 1,852,345.78 and 769,298.96 is: 1,061,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342,221.78 : 1,852,345.78 = 769,298.96 : x
  2. Step 2: Convert to fraction form
    1,342,221.78/1,852,345.78 = 769,298.96/x
  3. Step 3: Cross multiply
    1,342,221.78x = 1,852,345.78 × 769,298.96
  4. Step 4: Simplify right side
    1,342,221.78x = 1,425,007,682,114.39
  5. Step 5: Solve for x
    x = 1,425,007,682,114.39/1,342,221.78
  6. Step 6: Final answer
    x = 1,061,678.26

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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.