Home / 1,461,809.80-2,189,604.30-1,212,977.80

Finding the Fourth Proportional to 1,461,809.80, 2,189,604.30 and 1,212,977.80

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Solution

The fourth proportional to 1,461,809.80, 2,189,604.30 and 1,212,977.80 is: 1,816,885.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461,809.80 : 2,189,604.30 = 1,212,977.80 : x
  2. Step 2: Convert to fraction form
    1,461,809.80/2,189,604.30 = 1,212,977.80/x
  3. Step 3: Cross multiply
    1,461,809.80x = 2,189,604.30 × 1,212,977.80
  4. Step 4: Simplify right side
    1,461,809.80x = 2,655,941,406,684.54
  5. Step 5: Solve for x
    x = 2,655,941,406,684.54/1,461,809.80
  6. Step 6: Final answer
    x = 1,816,885.76

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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.