Home / 1,890,442.40-2,835,922.80-628,138.40

Finding the Fourth Proportional to 1,890,442.40, 2,835,922.80 and 628,138.40

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Solution

The fourth proportional to 1,890,442.40, 2,835,922.80 and 628,138.40 is: 942,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,442.40 : 2,835,922.80 = 628,138.40 : x
  2. Step 2: Convert to fraction form
    1,890,442.40/2,835,922.80 = 628,138.40/x
  3. Step 3: Cross multiply
    1,890,442.40x = 2,835,922.80 × 628,138.40
  4. Step 4: Simplify right side
    1,890,442.40x = 1,781,352,010,115.52
  5. Step 5: Solve for x
    x = 1,781,352,010,115.52/1,890,442.40
  6. Step 6: Final answer
    x = 942,293.72

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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.