Home / 792,078.20-1,188,117.30-661,441.40

Finding the Fourth Proportional to 792,078.20, 1,188,117.30 and 661,441.40

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Solution

The fourth proportional to 792,078.20, 1,188,117.30 and 661,441.40 is: 992,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,078.20 : 1,188,117.30 = 661,441.40 : x
  2. Step 2: Convert to fraction form
    792,078.20/1,188,117.30 = 661,441.40/x
  3. Step 3: Cross multiply
    792,078.20x = 1,188,117.30 × 661,441.40
  4. Step 4: Simplify right side
    792,078.20x = 785,869,970,276.22
  5. Step 5: Solve for x
    x = 785,869,970,276.22/792,078.20
  6. Step 6: Final answer
    x = 992,162.10

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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.