Home / 774,727.88-1,069,120.43-425,876.41

Finding the Fourth Proportional to 774,727.88, 1,069,120.43 and 425,876.41

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Solution

The fourth proportional to 774,727.88, 1,069,120.43 and 425,876.41 is: 587,707.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,727.88 : 1,069,120.43 = 425,876.41 : x
  2. Step 2: Convert to fraction form
    774,727.88/1,069,120.43 = 425,876.41/x
  3. Step 3: Cross multiply
    774,727.88x = 1,069,120.43 × 425,876.41
  4. Step 4: Simplify right side
    774,727.88x = 455,313,165,240.45
  5. Step 5: Solve for x
    x = 455,313,165,240.45/774,727.88
  6. Step 6: Final answer
    x = 587,707.22

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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.