Home / 1,020,391.06-1,410,081.76-765,299.38

Finding the Fourth Proportional to 1,020,391.06, 1,410,081.76 and 765,299.38

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Solution

The fourth proportional to 1,020,391.06, 1,410,081.76 and 765,299.38 is: 1,057,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,391.06 : 1,410,081.76 = 765,299.38 : x
  2. Step 2: Convert to fraction form
    1,020,391.06/1,410,081.76 = 765,299.38/x
  3. Step 3: Cross multiply
    1,020,391.06x = 1,410,081.76 × 765,299.38
  4. Step 4: Simplify right side
    1,020,391.06x = 1,079,134,696,677.31
  5. Step 5: Solve for x
    x = 1,079,134,696,677.31/1,020,391.06
  6. Step 6: Final answer
    x = 1,057,569.73

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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.