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Finding the Fourth Proportional to 848.15, 1,271.36 and 573.59

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Solution

The fourth proportional to 848.15, 1,271.36 and 573.59 is: 859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.15 : 1,271.36 = 573.59 : x
  2. Step 2: Convert to fraction form
    848.15/1,271.36 = 573.59/x
  3. Step 3: Cross multiply
    848.15x = 1,271.36 × 573.59
  4. Step 4: Simplify right side
    848.15x = 729,239.38
  5. Step 5: Solve for x
    x = 729,239.38/848.15
  6. Step 6: Final answer
    x = 859.80

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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.