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Finding the Fourth Proportional to 893.32, 1,339.35 and 568.30

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Solution

The fourth proportional to 893.32, 1,339.35 and 568.30 is: 852.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.32 : 1,339.35 = 568.30 : x
  2. Step 2: Convert to fraction form
    893.32/1,339.35 = 568.30/x
  3. Step 3: Cross multiply
    893.32x = 1,339.35 × 568.30
  4. Step 4: Simplify right side
    893.32x = 761,152.61
  5. Step 5: Solve for x
    x = 761,152.61/893.32
  6. Step 6: Final answer
    x = 852.05

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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.