Home / 1,221,245.78-1,832,035.93-422,312.81

Finding the Fourth Proportional to 1,221,245.78, 1,832,035.93 and 422,312.81

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Solution

The fourth proportional to 1,221,245.78, 1,832,035.93 and 422,312.81 is: 633,527.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,245.78 : 1,832,035.93 = 422,312.81 : x
  2. Step 2: Convert to fraction form
    1,221,245.78/1,832,035.93 = 422,312.81/x
  3. Step 3: Cross multiply
    1,221,245.78x = 1,832,035.93 × 422,312.81
  4. Step 4: Simplify right side
    1,221,245.78x = 773,692,231,403.30
  5. Step 5: Solve for x
    x = 773,692,231,403.30/1,221,245.78
  6. Step 6: Final answer
    x = 633,527.05

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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.