Home / 789,072-1,088,919.36-431,376

Finding the Fourth Proportional to 789,072, 1,088,919.36 and 431,376

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Solution

The fourth proportional to 789,072, 1,088,919.36 and 431,376 is: 595,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,072 : 1,088,919.36 = 431,376 : x
  2. Step 2: Convert to fraction form
    789,072/1,088,919.36 = 431,376/x
  3. Step 3: Cross multiply
    789,072x = 1,088,919.36 × 431,376
  4. Step 4: Simplify right side
    789,072x = 469,733,677,839.36
  5. Step 5: Solve for x
    x = 469,733,677,839.36/789,072
  6. Step 6: Final answer
    x = 595,298.88

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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.