Home / 753,620.76-1,039,936.32-431,256.96

Finding the Fourth Proportional to 753,620.76, 1,039,936.32 and 431,256.96

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Solution

The fourth proportional to 753,620.76, 1,039,936.32 and 431,256.96 is: 595,100.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,620.76 : 1,039,936.32 = 431,256.96 : x
  2. Step 2: Convert to fraction form
    753,620.76/1,039,936.32 = 431,256.96/x
  3. Step 3: Cross multiply
    753,620.76x = 1,039,936.32 × 431,256.96
  4. Step 4: Simplify right side
    753,620.76x = 448,479,775,956.79
  5. Step 5: Solve for x
    x = 448,479,775,956.79/753,620.76
  6. Step 6: Final answer
    x = 595,100.08

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1.5x scale

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.