Home / 2,825,387.40-3,900,477.08-1,912,441.28

Finding the Fourth Proportional to 2,825,387.40, 3,900,477.08 and 1,912,441.28

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Solution

The fourth proportional to 2,825,387.40, 3,900,477.08 and 1,912,441.28 is: 2,640,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825,387.40 : 3,900,477.08 = 1,912,441.28 : x
  2. Step 2: Convert to fraction form
    2,825,387.40/3,900,477.08 = 1,912,441.28/x
  3. Step 3: Cross multiply
    2,825,387.40x = 3,900,477.08 × 1,912,441.28
  4. Step 4: Simplify right side
    2,825,387.40x = 7,459,433,379,485.86
  5. Step 5: Solve for x
    x = 7,459,433,379,485.86/2,825,387.40
  6. Step 6: Final answer
    x = 2,640,145.34

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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.