Home / 1,221,348.30-1,831,147.65-511,010.70

Finding the Fourth Proportional to 1,221,348.30, 1,831,147.65 and 511,010.70

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Solution

The fourth proportional to 1,221,348.30, 1,831,147.65 and 511,010.70 is: 766,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,348.30 : 1,831,147.65 = 511,010.70 : x
  2. Step 2: Convert to fraction form
    1,221,348.30/1,831,147.65 = 511,010.70/x
  3. Step 3: Cross multiply
    1,221,348.30x = 1,831,147.65 × 511,010.70
  4. Step 4: Simplify right side
    1,221,348.30x = 935,736,042,429.86
  5. Step 5: Solve for x
    x = 935,736,042,429.86/1,221,348.30
  6. Step 6: Final answer
    x = 766,150.03

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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.