Home / 993,272.20-1,489,908.30-780,695.80

Finding the Fourth Proportional to 993,272.20, 1,489,908.30 and 780,695.80

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Solution

The fourth proportional to 993,272.20, 1,489,908.30 and 780,695.80 is: 1,171,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,272.20 : 1,489,908.30 = 780,695.80 : x
  2. Step 2: Convert to fraction form
    993,272.20/1,489,908.30 = 780,695.80/x
  3. Step 3: Cross multiply
    993,272.20x = 1,489,908.30 × 780,695.80
  4. Step 4: Simplify right side
    993,272.20x = 1,163,165,152,195.14
  5. Step 5: Solve for x
    x = 1,163,165,152,195.14/993,272.20
  6. Step 6: Final answer
    x = 1,171,043.70

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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.