Home / 2,909,902.30-4,015,978.38-1,603,285.70

Finding the Fourth Proportional to 2,909,902.30, 4,015,978.38 and 1,603,285.70

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Solution

The fourth proportional to 2,909,902.30, 4,015,978.38 and 1,603,285.70 is: 2,212,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,902.30 : 4,015,978.38 = 1,603,285.70 : x
  2. Step 2: Convert to fraction form
    2,909,902.30/4,015,978.38 = 1,603,285.70/x
  3. Step 3: Cross multiply
    2,909,902.30x = 4,015,978.38 × 1,603,285.70
  4. Step 4: Simplify right side
    2,909,902.30x = 6,438,760,688,083.28
  5. Step 5: Solve for x
    x = 6,438,760,688,083.28/2,909,902.30
  6. Step 6: Final answer
    x = 2,212,706.83

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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.