Home / 1,753,787.95-2,420,631.80-1,028,868.55

Finding the Fourth Proportional to 1,753,787.95, 2,420,631.80 and 1,028,868.55

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Solution

The fourth proportional to 1,753,787.95, 2,420,631.80 and 1,028,868.55 is: 1,420,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,753,787.95 : 2,420,631.80 = 1,028,868.55 : x
  2. Step 2: Convert to fraction form
    1,753,787.95/2,420,631.80 = 1,028,868.55/x
  3. Step 3: Cross multiply
    1,753,787.95x = 2,420,631.80 × 1,028,868.55
  4. Step 4: Simplify right side
    1,753,787.95x = 2,490,511,920,618.90
  5. Step 5: Solve for x
    x = 2,490,511,920,618.90/1,753,787.95
  6. Step 6: Final answer
    x = 1,420,075.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.