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Finding the Fourth Proportional to 1,258.25, 1,886.33 and 599.77

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Solution

The fourth proportional to 1,258.25, 1,886.33 and 599.77 is: 899.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.25 : 1,886.33 = 599.77 : x
  2. Step 2: Convert to fraction form
    1,258.25/1,886.33 = 599.77/x
  3. Step 3: Cross multiply
    1,258.25x = 1,886.33 × 599.77
  4. Step 4: Simplify right side
    1,258.25x = 1,131,364.14
  5. Step 5: Solve for x
    x = 1,131,364.14/1,258.25
  6. Step 6: Final answer
    x = 899.16

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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.