Home / 1,901,916.18-2,851,181.01-687,221.88

Finding the Fourth Proportional to 1,901,916.18, 2,851,181.01 and 687,221.88

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Solution

The fourth proportional to 1,901,916.18, 2,851,181.01 and 687,221.88 is: 1,030,220.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,916.18 : 2,851,181.01 = 687,221.88 : x
  2. Step 2: Convert to fraction form
    1,901,916.18/2,851,181.01 = 687,221.88/x
  3. Step 3: Cross multiply
    1,901,916.18x = 2,851,181.01 × 687,221.88
  4. Step 4: Simplify right side
    1,901,916.18x = 1,959,393,973,912.50
  5. Step 5: Solve for x
    x = 1,959,393,973,912.50/1,901,916.18
  6. Step 6: Final answer
    x = 1,030,220.99

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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.