Home / 878,379.10-1,317,590.52-247,288.66

Finding the Fourth Proportional to 878,379.10, 1,317,590.52 and 247,288.66

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Solution

The fourth proportional to 878,379.10, 1,317,590.52 and 247,288.66 is: 370,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,379.10 : 1,317,590.52 = 247,288.66 : x
  2. Step 2: Convert to fraction form
    878,379.10/1,317,590.52 = 247,288.66/x
  3. Step 3: Cross multiply
    878,379.10x = 1,317,590.52 × 247,288.66
  4. Step 4: Simplify right side
    878,379.10x = 325,825,194,119.50
  5. Step 5: Solve for x
    x = 325,825,194,119.50/878,379.10
  6. Step 6: Final answer
    x = 370,939.15

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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.