Home / 3,418,831.40-4,717,670.24-1,890,905.72

Finding the Fourth Proportional to 3,418,831.40, 4,717,670.24 and 1,890,905.72

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Solution

The fourth proportional to 3,418,831.40, 4,717,670.24 and 1,890,905.72 is: 2,609,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,831.40 : 4,717,670.24 = 1,890,905.72 : x
  2. Step 2: Convert to fraction form
    3,418,831.40/4,717,670.24 = 1,890,905.72/x
  3. Step 3: Cross multiply
    3,418,831.40x = 4,717,670.24 × 1,890,905.72
  4. Step 4: Simplify right side
    3,418,831.40x = 8,920,669,623,028.69
  5. Step 5: Solve for x
    x = 8,920,669,623,028.69/3,418,831.40
  6. Step 6: Final answer
    x = 2,609,274.51

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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.