Home / 753,395.64-1,039,865.34-431,291.88

Finding the Fourth Proportional to 753,395.64, 1,039,865.34 and 431,291.88

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Solution

The fourth proportional to 753,395.64, 1,039,865.34 and 431,291.88 is: 595,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,395.64 : 1,039,865.34 = 431,291.88 : x
  2. Step 2: Convert to fraction form
    753,395.64/1,039,865.34 = 431,291.88/x
  3. Step 3: Cross multiply
    753,395.64x = 1,039,865.34 × 431,291.88
  4. Step 4: Simplify right side
    753,395.64x = 448,485,477,435.44
  5. Step 5: Solve for x
    x = 448,485,477,435.44/753,395.64
  6. Step 6: Final answer
    x = 595,285.47

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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.