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Finding the Fourth Proportional to 848.61, 1,170.63 and 554.00

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Solution

The fourth proportional to 848.61, 1,170.63 and 554.00 is: 764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.61 : 1,170.63 = 554.00 : x
  2. Step 2: Convert to fraction form
    848.61/1,170.63 = 554.00/x
  3. Step 3: Cross multiply
    848.61x = 1,170.63 × 554.00
  4. Step 4: Simplify right side
    848.61x = 648,523.17
  5. Step 5: Solve for x
    x = 648,523.17/848.61
  6. Step 6: Final answer
    x = 764.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.