Home / 687,260.80-1,030,891.20-188,624.80

Finding the Fourth Proportional to 687,260.80, 1,030,891.20 and 188,624.80

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Solution

The fourth proportional to 687,260.80, 1,030,891.20 and 188,624.80 is: 282,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,260.80 : 1,030,891.20 = 188,624.80 : x
  2. Step 2: Convert to fraction form
    687,260.80/1,030,891.20 = 188,624.80/x
  3. Step 3: Cross multiply
    687,260.80x = 1,030,891.20 × 188,624.80
  4. Step 4: Simplify right side
    687,260.80x = 194,451,646,421.76
  5. Step 5: Solve for x
    x = 194,451,646,421.76/687,260.80
  6. Step 6: Final answer
    x = 282,937.20

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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.