Home / 1,245,039.72-1,868,142.84-613,609.08

Finding the Fourth Proportional to 1,245,039.72, 1,868,142.84 and 613,609.08

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Solution

The fourth proportional to 1,245,039.72, 1,868,142.84 and 613,609.08 is: 920,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,039.72 : 1,868,142.84 = 613,609.08 : x
  2. Step 2: Convert to fraction form
    1,245,039.72/1,868,142.84 = 613,609.08/x
  3. Step 3: Cross multiply
    1,245,039.72x = 1,868,142.84 × 613,609.08
  4. Step 4: Simplify right side
    1,245,039.72x = 1,146,309,409,360.99
  5. Step 5: Solve for x
    x = 1,146,309,409,360.99/1,245,039.72
  6. Step 6: Final answer
    x = 920,701.08

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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.