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Finding the Fourth Proportional to 1,209.74, 1,814.95 and 593.62

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Solution

The fourth proportional to 1,209.74, 1,814.95 and 593.62 is: 890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209.74 : 1,814.95 = 593.62 : x
  2. Step 2: Convert to fraction form
    1,209.74/1,814.95 = 593.62/x
  3. Step 3: Cross multiply
    1,209.74x = 1,814.95 × 593.62
  4. Step 4: Simplify right side
    1,209.74x = 1,077,384.60
  5. Step 5: Solve for x
    x = 1,077,384.60/1,209.74
  6. Step 6: Final answer
    x = 890.60

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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.