Home / 1,259,076.78-1,888,982.94-406,129.56

Finding the Fourth Proportional to 1,259,076.78, 1,888,982.94 and 406,129.56

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Solution

The fourth proportional to 1,259,076.78, 1,888,982.94 and 406,129.56 is: 609,312.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,076.78 : 1,888,982.94 = 406,129.56 : x
  2. Step 2: Convert to fraction form
    1,259,076.78/1,888,982.94 = 406,129.56/x
  3. Step 3: Cross multiply
    1,259,076.78x = 1,888,982.94 × 406,129.56
  4. Step 4: Simplify right side
    1,259,076.78x = 767,171,810,269.71
  5. Step 5: Solve for x
    x = 767,171,810,269.71/1,259,076.78
  6. Step 6: Final answer
    x = 609,312.97

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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.