Home / 1,515,571.68-2,091,339.92-836,464.40

Finding the Fourth Proportional to 1,515,571.68, 2,091,339.92 and 836,464.40

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Solution

The fourth proportional to 1,515,571.68, 2,091,339.92 and 836,464.40 is: 1,154,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,571.68 : 2,091,339.92 = 836,464.40 : x
  2. Step 2: Convert to fraction form
    1,515,571.68/2,091,339.92 = 836,464.40/x
  3. Step 3: Cross multiply
    1,515,571.68x = 2,091,339.92 × 836,464.40
  4. Step 4: Simplify right side
    1,515,571.68x = 1,749,331,391,378.85
  5. Step 5: Solve for x
    x = 1,749,331,391,378.85/1,515,571.68
  6. Step 6: Final answer
    x = 1,154,238.64

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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.