Home / 1,270,305.72-1,904,009.09-511,661.61

Finding the Fourth Proportional to 1,270,305.72, 1,904,009.09 and 511,661.61

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Solution

The fourth proportional to 1,270,305.72, 1,904,009.09 and 511,661.61 is: 766,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,305.72 : 1,904,009.09 = 511,661.61 : x
  2. Step 2: Convert to fraction form
    1,270,305.72/1,904,009.09 = 511,661.61/x
  3. Step 3: Cross multiply
    1,270,305.72x = 1,904,009.09 × 511,661.61
  4. Step 4: Simplify right side
    1,270,305.72x = 974,208,353,885.73
  5. Step 5: Solve for x
    x = 974,208,353,885.73/1,270,305.72
  6. Step 6: Final answer
    x = 766,908.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.