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Finding the Fourth Proportional to 848.15, 1,272.56 and 483.19

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Solution

The fourth proportional to 848.15, 1,272.56 and 483.19 is: 724.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.15 : 1,272.56 = 483.19 : x
  2. Step 2: Convert to fraction form
    848.15/1,272.56 = 483.19/x
  3. Step 3: Cross multiply
    848.15x = 1,272.56 × 483.19
  4. Step 4: Simplify right side
    848.15x = 614,888.97
  5. Step 5: Solve for x
    x = 614,888.97/848.15
  6. Step 6: Final answer
    x = 724.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.