Home / 1,442,156.98-1,990,442.88-926,555.42

Finding the Fourth Proportional to 1,442,156.98, 1,990,442.88 and 926,555.42

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Solution

The fourth proportional to 1,442,156.98, 1,990,442.88 and 926,555.42 is: 1,278,817.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,156.98 : 1,990,442.88 = 926,555.42 : x
  2. Step 2: Convert to fraction form
    1,442,156.98/1,990,442.88 = 926,555.42/x
  3. Step 3: Cross multiply
    1,442,156.98x = 1,990,442.88 × 926,555.42
  4. Step 4: Simplify right side
    1,442,156.98x = 1,844,255,638,664.41
  5. Step 5: Solve for x
    x = 1,844,255,638,664.41/1,442,156.98
  6. Step 6: Final answer
    x = 1,278,817.54

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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.