Home / 1,071,826.74-1,606,517.01-431,720.55

Finding the Fourth Proportional to 1,071,826.74, 1,606,517.01 and 431,720.55

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Solution

The fourth proportional to 1,071,826.74, 1,606,517.01 and 431,720.55 is: 647,088.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,826.74 : 1,606,517.01 = 431,720.55 : x
  2. Step 2: Convert to fraction form
    1,071,826.74/1,606,517.01 = 431,720.55/x
  3. Step 3: Cross multiply
    1,071,826.74x = 1,606,517.01 × 431,720.55
  4. Step 4: Simplify right side
    1,071,826.74x = 693,566,407,141.56
  5. Step 5: Solve for x
    x = 693,566,407,141.56/1,071,826.74
  6. Step 6: Final answer
    x = 647,088.17

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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.