Home / 1,212,335.88-1,672,987.04-668,471.51

Finding the Fourth Proportional to 1,212,335.88, 1,672,987.04 and 668,471.51

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Solution

The fourth proportional to 1,212,335.88, 1,672,987.04 and 668,471.51 is: 922,470.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,335.88 : 1,672,987.04 = 668,471.51 : x
  2. Step 2: Convert to fraction form
    1,212,335.88/1,672,987.04 = 668,471.51/x
  3. Step 3: Cross multiply
    1,212,335.88x = 1,672,987.04 × 668,471.51
  4. Step 4: Simplify right side
    1,212,335.88x = 1,118,344,169,600.76
  5. Step 5: Solve for x
    x = 1,118,344,169,600.76/1,212,335.88
  6. Step 6: Final answer
    x = 922,470.57

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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.