Home / 1,014.18-1,520.12-397.58

Finding the Fourth Proportional to 1,014.18, 1,520.12 and 397.58

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Solution

The fourth proportional to 1,014.18, 1,520.12 and 397.58 is: 595.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.18 : 1,520.12 = 397.58 : x
  2. Step 2: Convert to fraction form
    1,014.18/1,520.12 = 397.58/x
  3. Step 3: Cross multiply
    1,014.18x = 1,520.12 × 397.58
  4. Step 4: Simplify right side
    1,014.18x = 604,369.31
  5. Step 5: Solve for x
    x = 604,369.31/1,014.18
  6. Step 6: Final answer
    x = 595.92

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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.