Home / 816,129.20-1,224,193.80-727,482.80

Finding the Fourth Proportional to 816,129.20, 1,224,193.80 and 727,482.80

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Solution

The fourth proportional to 816,129.20, 1,224,193.80 and 727,482.80 is: 1,091,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,129.20 : 1,224,193.80 = 727,482.80 : x
  2. Step 2: Convert to fraction form
    816,129.20/1,224,193.80 = 727,482.80/x
  3. Step 3: Cross multiply
    816,129.20x = 1,224,193.80 × 727,482.80
  4. Step 4: Simplify right side
    816,129.20x = 890,579,933,366.64
  5. Step 5: Solve for x
    x = 890,579,933,366.64/816,129.20
  6. Step 6: Final answer
    x = 1,091,224.20

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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.