Home / 511,111.41-766,669.95-211,429.64

Finding the Fourth Proportional to 511,111.41, 766,669.95 and 211,429.64

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Solution

The fourth proportional to 511,111.41, 766,669.95 and 211,429.64 is: 317,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,111.41 : 766,669.95 = 211,429.64 : x
  2. Step 2: Convert to fraction form
    511,111.41/766,669.95 = 211,429.64/x
  3. Step 3: Cross multiply
    511,111.41x = 766,669.95 × 211,429.64
  4. Step 4: Simplify right side
    511,111.41x = 162,096,747,693.97
  5. Step 5: Solve for x
    x = 162,096,747,693.97/511,111.41
  6. Step 6: Final answer
    x = 317,145.63

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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.