Home / 1,270,072.56-1,904,610.72-511,772.40

Finding the Fourth Proportional to 1,270,072.56, 1,904,610.72 and 511,772.40

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Solution

The fourth proportional to 1,270,072.56, 1,904,610.72 and 511,772.40 is: 767,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,072.56 : 1,904,610.72 = 511,772.40 : x
  2. Step 2: Convert to fraction form
    1,270,072.56/1,904,610.72 = 511,772.40/x
  3. Step 3: Cross multiply
    1,270,072.56x = 1,904,610.72 × 511,772.40
  4. Step 4: Simplify right side
    1,270,072.56x = 974,727,199,240.13
  5. Step 5: Solve for x
    x = 974,727,199,240.13/1,270,072.56
  6. Step 6: Final answer
    x = 767,457.88

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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.