Home / 1,068.12-1,602.18-298.62

Finding the Fourth Proportional to 1,068.12, 1,602.18 and 298.62

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Solution

The fourth proportional to 1,068.12, 1,602.18 and 298.62 is: 447.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.12 : 1,602.18 = 298.62 : x
  2. Step 2: Convert to fraction form
    1,068.12/1,602.18 = 298.62/x
  3. Step 3: Cross multiply
    1,068.12x = 1,602.18 × 298.62
  4. Step 4: Simplify right side
    1,068.12x = 478,442.99
  5. Step 5: Solve for x
    x = 478,442.99/1,068.12
  6. Step 6: Final answer
    x = 447.93

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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.