Home / 3,120,859.72-4,306,568.88-1,762,470.28

Finding the Fourth Proportional to 3,120,859.72, 4,306,568.88 and 1,762,470.28

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Solution

The fourth proportional to 3,120,859.72, 4,306,568.88 and 1,762,470.28 is: 2,432,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,859.72 : 4,306,568.88 = 1,762,470.28 : x
  2. Step 2: Convert to fraction form
    3,120,859.72/4,306,568.88 = 1,762,470.28/x
  3. Step 3: Cross multiply
    3,120,859.72x = 4,306,568.88 × 1,762,470.28
  4. Step 4: Simplify right side
    3,120,859.72x = 7,590,199,659,772.89
  5. Step 5: Solve for x
    x = 7,590,199,659,772.89/3,120,859.72
  6. Step 6: Final answer
    x = 2,432,086.14

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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.