Home / 1,078,310.40-1,617,811.20-723,724.80

Finding the Fourth Proportional to 1,078,310.40, 1,617,811.20 and 723,724.80

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Solution

The fourth proportional to 1,078,310.40, 1,617,811.20 and 723,724.80 is: 1,085,819.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,310.40 : 1,617,811.20 = 723,724.80 : x
  2. Step 2: Convert to fraction form
    1,078,310.40/1,617,811.20 = 723,724.80/x
  3. Step 3: Cross multiply
    1,078,310.40x = 1,617,811.20 × 723,724.80
  4. Step 4: Simplify right side
    1,078,310.40x = 1,170,850,087,157.76
  5. Step 5: Solve for x
    x = 1,170,850,087,157.76/1,078,310.40
  6. Step 6: Final answer
    x = 1,085,819.15

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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.