Home / 774,856.58-1,069,321.84-425,992.71

Finding the Fourth Proportional to 774,856.58, 1,069,321.84 and 425,992.71

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Solution

The fourth proportional to 774,856.58, 1,069,321.84 and 425,992.71 is: 587,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,856.58 : 1,069,321.84 = 425,992.71 : x
  2. Step 2: Convert to fraction form
    774,856.58/1,069,321.84 = 425,992.71/x
  3. Step 3: Cross multiply
    774,856.58x = 1,069,321.84 × 425,992.71
  4. Step 4: Simplify right side
    774,856.58x = 455,523,311,428.76
  5. Step 5: Solve for x
    x = 455,523,311,428.76/774,856.58
  6. Step 6: Final answer
    x = 587,880.81

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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.