Home / 699,246.80-1,049,129.40-278,824.40

Finding the Fourth Proportional to 699,246.80, 1,049,129.40 and 278,824.40

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Solution

The fourth proportional to 699,246.80, 1,049,129.40 and 278,824.40 is: 418,339.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,246.80 : 1,049,129.40 = 278,824.40 : x
  2. Step 2: Convert to fraction form
    699,246.80/1,049,129.40 = 278,824.40/x
  3. Step 3: Cross multiply
    699,246.80x = 1,049,129.40 × 278,824.40
  4. Step 4: Simplify right side
    699,246.80x = 292,522,875,477.36
  5. Step 5: Solve for x
    x = 292,522,875,477.36/699,246.80
  6. Step 6: Final answer
    x = 418,339.96

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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.