Home / 784,169.40-1,173,143.70-680,143.80

Finding the Fourth Proportional to 784,169.40, 1,173,143.70 and 680,143.80

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Solution

The fourth proportional to 784,169.40, 1,173,143.70 and 680,143.80 is: 1,017,517.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,169.40 : 1,173,143.70 = 680,143.80 : x
  2. Step 2: Convert to fraction form
    784,169.40/1,173,143.70 = 680,143.80/x
  3. Step 3: Cross multiply
    784,169.40x = 1,173,143.70 × 680,143.80
  4. Step 4: Simplify right side
    784,169.40x = 797,906,414,064.06
  5. Step 5: Solve for x
    x = 797,906,414,064.06/784,169.40
  6. Step 6: Final answer
    x = 1,017,517.92

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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.