Home / 1,012.30-1,518.48-525.04

Finding the Fourth Proportional to 1,012.30, 1,518.48 and 525.04

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Solution

The fourth proportional to 1,012.30, 1,518.48 and 525.04 is: 787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012.30 : 1,518.48 = 525.04 : x
  2. Step 2: Convert to fraction form
    1,012.30/1,518.48 = 525.04/x
  3. Step 3: Cross multiply
    1,012.30x = 1,518.48 × 525.04
  4. Step 4: Simplify right side
    1,012.30x = 797,262.74
  5. Step 5: Solve for x
    x = 797,262.74/1,012.30
  6. Step 6: Final answer
    x = 787.58

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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.