Home / 2,118,867.70-3,178,399.47-699,047.86

Finding the Fourth Proportional to 2,118,867.70, 3,178,399.47 and 699,047.86

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Solution

The fourth proportional to 2,118,867.70, 3,178,399.47 and 699,047.86 is: 1,048,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,867.70 : 3,178,399.47 = 699,047.86 : x
  2. Step 2: Convert to fraction form
    2,118,867.70/3,178,399.47 = 699,047.86/x
  3. Step 3: Cross multiply
    2,118,867.70x = 3,178,399.47 × 699,047.86
  4. Step 4: Simplify right side
    2,118,867.70x = 2,221,853,347,728.63
  5. Step 5: Solve for x
    x = 2,221,853,347,728.63/2,118,867.70
  6. Step 6: Final answer
    x = 1,048,604.10

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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.