Home / 1,391,840.56-2,087,001.06-419,062.96

Finding the Fourth Proportional to 1,391,840.56, 2,087,001.06 and 419,062.96

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Solution

The fourth proportional to 1,391,840.56, 2,087,001.06 and 419,062.96 is: 628,365.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,840.56 : 2,087,001.06 = 419,062.96 : x
  2. Step 2: Convert to fraction form
    1,391,840.56/2,087,001.06 = 419,062.96/x
  3. Step 3: Cross multiply
    1,391,840.56x = 2,087,001.06 × 419,062.96
  4. Step 4: Simplify right side
    1,391,840.56x = 874,584,841,726.74
  5. Step 5: Solve for x
    x = 874,584,841,726.74/1,391,840.56
  6. Step 6: Final answer
    x = 628,365.68

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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.