Home / 1,719.12-2,577.88-623.44

Finding the Fourth Proportional to 1,719.12, 2,577.88 and 623.44

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Solution

The fourth proportional to 1,719.12, 2,577.88 and 623.44 is: 934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.12 : 2,577.88 = 623.44 : x
  2. Step 2: Convert to fraction form
    1,719.12/2,577.88 = 623.44/x
  3. Step 3: Cross multiply
    1,719.12x = 2,577.88 × 623.44
  4. Step 4: Simplify right side
    1,719.12x = 1,607,153.51
  5. Step 5: Solve for x
    x = 1,607,153.51/1,719.12
  6. Step 6: Final answer
    x = 934.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.