Home / 2,235,879.40-3,085,509.36-1,217,281.72

Finding the Fourth Proportional to 2,235,879.40, 3,085,509.36 and 1,217,281.72

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Solution

The fourth proportional to 2,235,879.40, 3,085,509.36 and 1,217,281.72 is: 1,679,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235,879.40 : 3,085,509.36 = 1,217,281.72 : x
  2. Step 2: Convert to fraction form
    2,235,879.40/3,085,509.36 = 1,217,281.72/x
  3. Step 3: Cross multiply
    2,235,879.40x = 3,085,509.36 × 1,217,281.72
  4. Step 4: Simplify right side
    2,235,879.40x = 3,755,934,140,816.90
  5. Step 5: Solve for x
    x = 3,755,934,140,816.90/2,235,879.40
  6. Step 6: Final answer
    x = 1,679,846.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.