Home / 2,712,005.20-4,068,007.80-690,245.20

Finding the Fourth Proportional to 2,712,005.20, 4,068,007.80 and 690,245.20

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Solution

The fourth proportional to 2,712,005.20, 4,068,007.80 and 690,245.20 is: 1,035,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712,005.20 : 4,068,007.80 = 690,245.20 : x
  2. Step 2: Convert to fraction form
    2,712,005.20/4,068,007.80 = 690,245.20/x
  3. Step 3: Cross multiply
    2,712,005.20x = 4,068,007.80 × 690,245.20
  4. Step 4: Simplify right side
    2,712,005.20x = 2,807,922,857,512.56
  5. Step 5: Solve for x
    x = 2,807,922,857,512.56/2,712,005.20
  6. Step 6: Final answer
    x = 1,035,367.80

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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.