Home / 3,417,658.20-5,128,455.60-1,289,269.80

Finding the Fourth Proportional to 3,417,658.20, 5,128,455.60 and 1,289,269.80

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Solution

The fourth proportional to 3,417,658.20, 5,128,455.60 and 1,289,269.80 is: 1,934,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,417,658.20 : 5,128,455.60 = 1,289,269.80 : x
  2. Step 2: Convert to fraction form
    3,417,658.20/5,128,455.60 = 1,289,269.80/x
  3. Step 3: Cross multiply
    3,417,658.20x = 5,128,455.60 × 1,289,269.80
  4. Step 4: Simplify right side
    3,417,658.20x = 6,611,962,925,720.88
  5. Step 5: Solve for x
    x = 6,611,962,925,720.88/3,417,658.20
  6. Step 6: Final answer
    x = 1,934,647.22

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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.