Home / 1,143,507.78-1,578,000.69-634,257.54

Finding the Fourth Proportional to 1,143,507.78, 1,578,000.69 and 634,257.54

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Solution

The fourth proportional to 1,143,507.78, 1,578,000.69 and 634,257.54 is: 875,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,507.78 : 1,578,000.69 = 634,257.54 : x
  2. Step 2: Convert to fraction form
    1,143,507.78/1,578,000.69 = 634,257.54/x
  3. Step 3: Cross multiply
    1,143,507.78x = 1,578,000.69 × 634,257.54
  4. Step 4: Simplify right side
    1,143,507.78x = 1,000,858,835,757.70
  5. Step 5: Solve for x
    x = 1,000,858,835,757.70/1,143,507.78
  6. Step 6: Final answer
    x = 875,253.19

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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.