Home / 863,404.80-1,295,107.20-272,428.80

Finding the Fourth Proportional to 863,404.80, 1,295,107.20 and 272,428.80

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Solution

The fourth proportional to 863,404.80, 1,295,107.20 and 272,428.80 is: 408,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,404.80 : 1,295,107.20 = 272,428.80 : x
  2. Step 2: Convert to fraction form
    863,404.80/1,295,107.20 = 272,428.80/x
  3. Step 3: Cross multiply
    863,404.80x = 1,295,107.20 × 272,428.80
  4. Step 4: Simplify right side
    863,404.80x = 352,824,500,367.36
  5. Step 5: Solve for x
    x = 352,824,500,367.36/863,404.80
  6. Step 6: Final answer
    x = 408,643.20

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Similar ratio
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1.5x scale

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.