Home / 743,723.91-1,115,142.39-294,509.25

Finding the Fourth Proportional to 743,723.91, 1,115,142.39 and 294,509.25

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Solution

The fourth proportional to 743,723.91, 1,115,142.39 and 294,509.25 is: 441,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,723.91 : 1,115,142.39 = 294,509.25 : x
  2. Step 2: Convert to fraction form
    743,723.91/1,115,142.39 = 294,509.25/x
  3. Step 3: Cross multiply
    743,723.91x = 1,115,142.39 × 294,509.25
  4. Step 4: Simplify right side
    743,723.91x = 328,419,748,922.11
  5. Step 5: Solve for x
    x = 328,419,748,922.11/743,723.91
  6. Step 6: Final answer
    x = 441,588.26

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1.5x scale

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.