Home / 809,100.06-1,214,008.20-424,758.51

Finding the Fourth Proportional to 809,100.06, 1,214,008.20 and 424,758.51

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Solution

The fourth proportional to 809,100.06, 1,214,008.20 and 424,758.51 is: 637,325.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,100.06 : 1,214,008.20 = 424,758.51 : x
  2. Step 2: Convert to fraction form
    809,100.06/1,214,008.20 = 424,758.51/x
  3. Step 3: Cross multiply
    809,100.06x = 1,214,008.20 × 424,758.51
  4. Step 4: Simplify right side
    809,100.06x = 515,660,314,159.78
  5. Step 5: Solve for x
    x = 515,660,314,159.78/809,100.06
  6. Step 6: Final answer
    x = 637,325.76

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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.