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Finding the Fourth Proportional to 774,857.58, 1,069,323.22 and 425,993.71

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Solution

The fourth proportional to 774,857.58, 1,069,323.22 and 425,993.71 is: 587,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,857.58 : 1,069,323.22 = 425,993.71 : x
  2. Step 2: Convert to fraction form
    774,857.58/1,069,323.22 = 425,993.71/x
  3. Step 3: Cross multiply
    774,857.58x = 1,069,323.22 × 425,993.71
  4. Step 4: Simplify right side
    774,857.58x = 455,524,965,676.95
  5. Step 5: Solve for x
    x = 455,524,965,676.95/774,857.58
  6. Step 6: Final answer
    x = 587,882.18

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Double scale
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1.5x scale

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.