Home / 1,281,738.60-1,922,607.90-1,227,133.80

Finding the Fourth Proportional to 1,281,738.60, 1,922,607.90 and 1,227,133.80

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Solution

The fourth proportional to 1,281,738.60, 1,922,607.90 and 1,227,133.80 is: 1,840,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,738.60 : 1,922,607.90 = 1,227,133.80 : x
  2. Step 2: Convert to fraction form
    1,281,738.60/1,922,607.90 = 1,227,133.80/x
  3. Step 3: Cross multiply
    1,281,738.60x = 1,922,607.90 × 1,227,133.80
  4. Step 4: Simplify right side
    1,281,738.60x = 2,359,297,138,237.02
  5. Step 5: Solve for x
    x = 2,359,297,138,237.02/1,281,738.60
  6. Step 6: Final answer
    x = 1,840,700.70

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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.