Home / 2,118,865.20-3,178,395.72-699,045.36

Finding the Fourth Proportional to 2,118,865.20, 3,178,395.72 and 699,045.36

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Solution

The fourth proportional to 2,118,865.20, 3,178,395.72 and 699,045.36 is: 1,048,600.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,865.20 : 3,178,395.72 = 699,045.36 : x
  2. Step 2: Convert to fraction form
    2,118,865.20/3,178,395.72 = 699,045.36/x
  3. Step 3: Cross multiply
    2,118,865.20x = 3,178,395.72 × 699,045.36
  4. Step 4: Simplify right side
    2,118,865.20x = 2,221,842,780,309.86
  5. Step 5: Solve for x
    x = 2,221,842,780,309.86/2,118,865.20
  6. Step 6: Final answer
    x = 1,048,600.35

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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.