Home / 1,212,102.72-1,817,979-370,428.48

Finding the Fourth Proportional to 1,212,102.72, 1,817,979 and 370,428.48

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Solution

The fourth proportional to 1,212,102.72, 1,817,979 and 370,428.48 is: 555,589.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,102.72 : 1,817,979 = 370,428.48 : x
  2. Step 2: Convert to fraction form
    1,212,102.72/1,817,979 = 370,428.48/x
  3. Step 3: Cross multiply
    1,212,102.72x = 1,817,979 × 370,428.48
  4. Step 4: Simplify right side
    1,212,102.72x = 673,431,197,641.92
  5. Step 5: Solve for x
    x = 673,431,197,641.92/1,212,102.72
  6. Step 6: Final answer
    x = 555,589.21

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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.