Home / 779,502.69-1,169,286.78-380,479.08

Finding the Fourth Proportional to 779,502.69, 1,169,286.78 and 380,479.08

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Solution

The fourth proportional to 779,502.69, 1,169,286.78 and 380,479.08 is: 570,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,502.69 : 1,169,286.78 = 380,479.08 : x
  2. Step 2: Convert to fraction form
    779,502.69/1,169,286.78 = 380,479.08/x
  3. Step 3: Cross multiply
    779,502.69x = 1,169,286.78 × 380,479.08
  4. Step 4: Simplify right side
    779,502.69x = 444,889,158,310.56
  5. Step 5: Solve for x
    x = 444,889,158,310.56/779,502.69
  6. Step 6: Final answer
    x = 570,734.60

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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.