Home / 772,830.20-1,159,245.30-536,439.80

Finding the Fourth Proportional to 772,830.20, 1,159,245.30 and 536,439.80

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Solution

The fourth proportional to 772,830.20, 1,159,245.30 and 536,439.80 is: 804,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,830.20 : 1,159,245.30 = 536,439.80 : x
  2. Step 2: Convert to fraction form
    772,830.20/1,159,245.30 = 536,439.80/x
  3. Step 3: Cross multiply
    772,830.20x = 1,159,245.30 × 536,439.80
  4. Step 4: Simplify right side
    772,830.20x = 621,865,316,882.94
  5. Step 5: Solve for x
    x = 621,865,316,882.94/772,830.20
  6. Step 6: Final answer
    x = 804,659.70

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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.