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Finding the Fourth Proportional to 848.64, 1,270.56 and 704.88

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Solution

The fourth proportional to 848.64, 1,270.56 and 704.88 is: 1,055.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.64 : 1,270.56 = 704.88 : x
  2. Step 2: Convert to fraction form
    848.64/1,270.56 = 704.88/x
  3. Step 3: Cross multiply
    848.64x = 1,270.56 × 704.88
  4. Step 4: Simplify right side
    848.64x = 895,592.33
  5. Step 5: Solve for x
    x = 895,592.33/848.64
  6. Step 6: Final answer
    x = 1,055.33

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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.