Home / 780,184.30-1,170,276.45-689,982.70

Finding the Fourth Proportional to 780,184.30, 1,170,276.45 and 689,982.70

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Solution

The fourth proportional to 780,184.30, 1,170,276.45 and 689,982.70 is: 1,034,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,184.30 : 1,170,276.45 = 689,982.70 : x
  2. Step 2: Convert to fraction form
    780,184.30/1,170,276.45 = 689,982.70/x
  3. Step 3: Cross multiply
    780,184.30x = 1,170,276.45 × 689,982.70
  4. Step 4: Simplify right side
    780,184.30x = 807,470,504,717.42
  5. Step 5: Solve for x
    x = 807,470,504,717.42/780,184.30
  6. Step 6: Final answer
    x = 1,034,974.05

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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.