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Finding the Fourth Proportional to 559.51, 843.76 and 555.86

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Solution

The fourth proportional to 559.51, 843.76 and 555.86 is: 838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559.51 : 843.76 = 555.86 : x
  2. Step 2: Convert to fraction form
    559.51/843.76 = 555.86/x
  3. Step 3: Cross multiply
    559.51x = 843.76 × 555.86
  4. Step 4: Simplify right side
    559.51x = 469,012.43
  5. Step 5: Solve for x
    x = 469,012.43/559.51
  6. Step 6: Final answer
    x = 838.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.