Home / 1,510,072.79-2,083,944.27-821,789.06

Finding the Fourth Proportional to 1,510,072.79, 2,083,944.27 and 821,789.06

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Solution

The fourth proportional to 1,510,072.79, 2,083,944.27 and 821,789.06 is: 1,134,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510,072.79 : 2,083,944.27 = 821,789.06 : x
  2. Step 2: Convert to fraction form
    1,510,072.79/2,083,944.27 = 821,789.06/x
  3. Step 3: Cross multiply
    1,510,072.79x = 2,083,944.27 × 821,789.06
  4. Step 4: Simplify right side
    1,510,072.79x = 1,712,562,592,315.97
  5. Step 5: Solve for x
    x = 1,712,562,592,315.97/1,510,072.79
  6. Step 6: Final answer
    x = 1,134,092.75

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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.