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Finding the Fourth Proportional to 1,343.19, 2,015.72 and 602.99

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Solution

The fourth proportional to 1,343.19, 2,015.72 and 602.99 is: 904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.19 : 2,015.72 = 602.99 : x
  2. Step 2: Convert to fraction form
    1,343.19/2,015.72 = 602.99/x
  3. Step 3: Cross multiply
    1,343.19x = 2,015.72 × 602.99
  4. Step 4: Simplify right side
    1,343.19x = 1,215,445.91
  5. Step 5: Solve for x
    x = 1,215,445.91/1,343.19
  6. Step 6: Final answer
    x = 904.89

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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.