Home / 2,978,561.43-4,110,432.63-1,620,444.15

Finding the Fourth Proportional to 2,978,561.43, 4,110,432.63 and 1,620,444.15

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Solution

The fourth proportional to 2,978,561.43, 4,110,432.63 and 1,620,444.15 is: 2,236,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,561.43 : 4,110,432.63 = 1,620,444.15 : x
  2. Step 2: Convert to fraction form
    2,978,561.43/4,110,432.63 = 1,620,444.15/x
  3. Step 3: Cross multiply
    2,978,561.43x = 4,110,432.63 × 1,620,444.15
  4. Step 4: Simplify right side
    2,978,561.43x = 6,660,726,509,252.61
  5. Step 5: Solve for x
    x = 6,660,726,509,252.61/2,978,561.43
  6. Step 6: Final answer
    x = 2,236,222.64

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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.