Home / 2,658,415.20-3,987,622.80-1,311,223.20

Finding the Fourth Proportional to 2,658,415.20, 3,987,622.80 and 1,311,223.20

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Solution

The fourth proportional to 2,658,415.20, 3,987,622.80 and 1,311,223.20 is: 1,966,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,658,415.20 : 3,987,622.80 = 1,311,223.20 : x
  2. Step 2: Convert to fraction form
    2,658,415.20/3,987,622.80 = 1,311,223.20/x
  3. Step 3: Cross multiply
    2,658,415.20x = 3,987,622.80 × 1,311,223.20
  4. Step 4: Simplify right side
    2,658,415.20x = 5,228,663,528,208.96
  5. Step 5: Solve for x
    x = 5,228,663,528,208.96/2,658,415.20
  6. Step 6: Final answer
    x = 1,966,834.80

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Similar ratio
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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.