Home / 792,007.20-1,188,010.80-720,122.40

Finding the Fourth Proportional to 792,007.20, 1,188,010.80 and 720,122.40

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Solution

The fourth proportional to 792,007.20, 1,188,010.80 and 720,122.40 is: 1,080,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,007.20 : 1,188,010.80 = 720,122.40 : x
  2. Step 2: Convert to fraction form
    792,007.20/1,188,010.80 = 720,122.40/x
  3. Step 3: Cross multiply
    792,007.20x = 1,188,010.80 × 720,122.40
  4. Step 4: Simplify right side
    792,007.20x = 855,513,188,521.92
  5. Step 5: Solve for x
    x = 855,513,188,521.92/792,007.20
  6. Step 6: Final answer
    x = 1,080,183.60

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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.