Home / 753,238.64-1,039,650.39-431,135.66

Finding the Fourth Proportional to 753,238.64, 1,039,650.39 and 431,135.66

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Solution

The fourth proportional to 753,238.64, 1,039,650.39 and 431,135.66 is: 595,070.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,238.64 : 1,039,650.39 = 431,135.66 : x
  2. Step 2: Convert to fraction form
    753,238.64/1,039,650.39 = 431,135.66/x
  3. Step 3: Cross multiply
    753,238.64x = 1,039,650.39 × 431,135.66
  4. Step 4: Simplify right side
    753,238.64x = 448,230,359,661.03
  5. Step 5: Solve for x
    x = 448,230,359,661.03/753,238.64
  6. Step 6: Final answer
    x = 595,070.85

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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.