Home / 1,177,682.20-1,766,523.30-430,019.80

Finding the Fourth Proportional to 1,177,682.20, 1,766,523.30 and 430,019.80

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Solution

The fourth proportional to 1,177,682.20, 1,766,523.30 and 430,019.80 is: 645,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,682.20 : 1,766,523.30 = 430,019.80 : x
  2. Step 2: Convert to fraction form
    1,177,682.20/1,766,523.30 = 430,019.80/x
  3. Step 3: Cross multiply
    1,177,682.20x = 1,766,523.30 × 430,019.80
  4. Step 4: Simplify right side
    1,177,682.20x = 759,639,996,161.34
  5. Step 5: Solve for x
    x = 759,639,996,161.34/1,177,682.20
  6. Step 6: Final answer
    x = 645,029.70

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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.