Home / 1,071,854.54-1,606,558.74-431,748.36

Finding the Fourth Proportional to 1,071,854.54, 1,606,558.74 and 431,748.36

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Solution

The fourth proportional to 1,071,854.54, 1,606,558.74 and 431,748.36 is: 647,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,854.54 : 1,606,558.74 = 431,748.36 : x
  2. Step 2: Convert to fraction form
    1,071,854.54/1,606,558.74 = 431,748.36/x
  3. Step 3: Cross multiply
    1,071,854.54x = 1,606,558.74 × 431,748.36
  4. Step 4: Simplify right side
    1,071,854.54x = 693,629,101,238.67
  5. Step 5: Solve for x
    x = 693,629,101,238.67/1,071,854.54
  6. Step 6: Final answer
    x = 647,129.88

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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.