Home / 2,811,000-4,217,288.32-1,129,284.48

Finding the Fourth Proportional to 2,811,000, 4,217,288.32 and 1,129,284.48

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Solution

The fourth proportional to 2,811,000, 4,217,288.32 and 1,129,284.48 is: 1,694,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,000 : 4,217,288.32 = 1,129,284.48 : x
  2. Step 2: Convert to fraction form
    2,811,000/4,217,288.32 = 1,129,284.48/x
  3. Step 3: Cross multiply
    2,811,000x = 4,217,288.32 × 1,129,284.48
  4. Step 4: Simplify right side
    2,811,000x = 4,762,518,247,461.27
  5. Step 5: Solve for x
    x = 4,762,518,247,461.27/2,811,000
  6. Step 6: Final answer
    x = 1,694,243.42

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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.