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Finding the Fourth Proportional to 556,121.44, 767,340.64 and 352,028.80

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Solution

The fourth proportional to 556,121.44, 767,340.64 and 352,028.80 is: 485,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,121.44 : 767,340.64 = 352,028.80 : x
  2. Step 2: Convert to fraction form
    556,121.44/767,340.64 = 352,028.80/x
  3. Step 3: Cross multiply
    556,121.44x = 767,340.64 × 352,028.80
  4. Step 4: Simplify right side
    556,121.44x = 270,126,004,690.43
  5. Step 5: Solve for x
    x = 270,126,004,690.43/556,121.44
  6. Step 6: Final answer
    x = 485,732.05

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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.