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Finding the Fourth Proportional to 1,263.66, 1,894.92 and 570.30

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Solution

The fourth proportional to 1,263.66, 1,894.92 and 570.30 is: 855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.66 : 1,894.92 = 570.30 : x
  2. Step 2: Convert to fraction form
    1,263.66/1,894.92 = 570.30/x
  3. Step 3: Cross multiply
    1,263.66x = 1,894.92 × 570.30
  4. Step 4: Simplify right side
    1,263.66x = 1,080,672.88
  5. Step 5: Solve for x
    x = 1,080,672.88/1,263.66
  6. Step 6: Final answer
    x = 855.19

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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.