Home / 1,217,720.80-1,826,696.40-331,256.80

Finding the Fourth Proportional to 1,217,720.80, 1,826,696.40 and 331,256.80

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Solution

The fourth proportional to 1,217,720.80, 1,826,696.40 and 331,256.80 is: 496,916.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,720.80 : 1,826,696.40 = 331,256.80 : x
  2. Step 2: Convert to fraction form
    1,217,720.80/1,826,696.40 = 331,256.80/x
  3. Step 3: Cross multiply
    1,217,720.80x = 1,826,696.40 × 331,256.80
  4. Step 4: Simplify right side
    1,217,720.80x = 605,105,604,035.52
  5. Step 5: Solve for x
    x = 605,105,604,035.52/1,217,720.80
  6. Step 6: Final answer
    x = 496,916.54

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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.