Home / 2,159,170.40-3,237,200.40-1,212,831.20

Finding the Fourth Proportional to 2,159,170.40, 3,237,200.40 and 1,212,831.20

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Solution

The fourth proportional to 2,159,170.40, 3,237,200.40 and 1,212,831.20 is: 1,818,373.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,170.40 : 3,237,200.40 = 1,212,831.20 : x
  2. Step 2: Convert to fraction form
    2,159,170.40/3,237,200.40 = 1,212,831.20/x
  3. Step 3: Cross multiply
    2,159,170.40x = 3,237,200.40 × 1,212,831.20
  4. Step 4: Simplify right side
    2,159,170.40x = 3,926,177,645,772.48
  5. Step 5: Solve for x
    x = 3,926,177,645,772.48/2,159,170.40
  6. Step 6: Final answer
    x = 1,818,373.23

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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.