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Finding the Fourth Proportional to 841.99, 1,259.39 and 608.26

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Solution

The fourth proportional to 841.99, 1,259.39 and 608.26 is: 909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.99 : 1,259.39 = 608.26 : x
  2. Step 2: Convert to fraction form
    841.99/1,259.39 = 608.26/x
  3. Step 3: Cross multiply
    841.99x = 1,259.39 × 608.26
  4. Step 4: Simplify right side
    841.99x = 766,036.56
  5. Step 5: Solve for x
    x = 766,036.56/841.99
  6. Step 6: Final answer
    x = 909.79

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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.