Home / 511,727.18-767,262.30-212,414.36

Finding the Fourth Proportional to 511,727.18, 767,262.30 and 212,414.36

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Solution

The fourth proportional to 511,727.18, 767,262.30 and 212,414.36 is: 318,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,727.18 : 767,262.30 = 212,414.36 : x
  2. Step 2: Convert to fraction form
    511,727.18/767,262.30 = 212,414.36/x
  3. Step 3: Cross multiply
    511,727.18x = 767,262.30 × 212,414.36
  4. Step 4: Simplify right side
    511,727.18x = 162,977,526,570.32
  5. Step 5: Solve for x
    x = 162,977,526,570.32/511,727.18
  6. Step 6: Final answer
    x = 318,485.19

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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.