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Finding the Fourth Proportional to 703.59, 1,055.66 and 292.63

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Solution

The fourth proportional to 703.59, 1,055.66 and 292.63 is: 439.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.59 : 1,055.66 = 292.63 : x
  2. Step 2: Convert to fraction form
    703.59/1,055.66 = 292.63/x
  3. Step 3: Cross multiply
    703.59x = 1,055.66 × 292.63
  4. Step 4: Simplify right side
    703.59x = 308,917.79
  5. Step 5: Solve for x
    x = 308,917.79/703.59
  6. Step 6: Final answer
    x = 439.06

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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.