Home / 1,217,728.80-1,826,708.40-331,264.80

Finding the Fourth Proportional to 1,217,728.80, 1,826,708.40 and 331,264.80

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Solution

The fourth proportional to 1,217,728.80, 1,826,708.40 and 331,264.80 is: 496,928.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,728.80 : 1,826,708.40 = 331,264.80 : x
  2. Step 2: Convert to fraction form
    1,217,728.80/1,826,708.40 = 331,264.80/x
  3. Step 3: Cross multiply
    1,217,728.80x = 1,826,708.40 × 331,264.80
  4. Step 4: Simplify right side
    1,217,728.80x = 605,124,192,784.32
  5. Step 5: Solve for x
    x = 605,124,192,784.32/1,217,728.80
  6. Step 6: Final answer
    x = 496,928.54

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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.