Home / 1,231,394.73-1,698,875.94-721,998.69

Finding the Fourth Proportional to 1,231,394.73, 1,698,875.94 and 721,998.69

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Solution

The fourth proportional to 1,231,394.73, 1,698,875.94 and 721,998.69 is: 996,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,394.73 : 1,698,875.94 = 721,998.69 : x
  2. Step 2: Convert to fraction form
    1,231,394.73/1,698,875.94 = 721,998.69/x
  3. Step 3: Cross multiply
    1,231,394.73x = 1,698,875.94 × 721,998.69
  4. Step 4: Simplify right side
    1,231,394.73x = 1,226,586,203,152.52
  5. Step 5: Solve for x
    x = 1,226,586,203,152.52/1,231,394.73
  6. Step 6: Final answer
    x = 996,095.06

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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.