Home / 1,221,447.80-1,831,296.90-511,110.20

Finding the Fourth Proportional to 1,221,447.80, 1,831,296.90 and 511,110.20

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Solution

The fourth proportional to 1,221,447.80, 1,831,296.90 and 511,110.20 is: 766,299.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,447.80 : 1,831,296.90 = 511,110.20 : x
  2. Step 2: Convert to fraction form
    1,221,447.80/1,831,296.90 = 511,110.20/x
  3. Step 3: Cross multiply
    1,221,447.80x = 1,831,296.90 × 511,110.20
  4. Step 4: Simplify right side
    1,221,447.80x = 935,994,524,818.38
  5. Step 5: Solve for x
    x = 935,994,524,818.38/1,221,447.80
  6. Step 6: Final answer
    x = 766,299.24

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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.