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Finding the Fourth Proportional to 1,081.54, 1,492.48 and 602.98

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Solution

The fourth proportional to 1,081.54, 1,492.48 and 602.98 is: 832.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081.54 : 1,492.48 = 602.98 : x
  2. Step 2: Convert to fraction form
    1,081.54/1,492.48 = 602.98/x
  3. Step 3: Cross multiply
    1,081.54x = 1,492.48 × 602.98
  4. Step 4: Simplify right side
    1,081.54x = 899,929.22
  5. Step 5: Solve for x
    x = 899,929.22/1,081.54
  6. Step 6: Final answer
    x = 832.08

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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.