Home / 1,461,690.80-2,189,425.80-1,212,858.80

Finding the Fourth Proportional to 1,461,690.80, 2,189,425.80 and 1,212,858.80

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Solution

The fourth proportional to 1,461,690.80, 2,189,425.80 and 1,212,858.80 is: 1,816,707.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461,690.80 : 2,189,425.80 = 1,212,858.80 : x
  2. Step 2: Convert to fraction form
    1,461,690.80/2,189,425.80 = 1,212,858.80/x
  3. Step 3: Cross multiply
    1,461,690.80x = 2,189,425.80 × 1,212,858.80
  4. Step 4: Simplify right side
    1,461,690.80x = 2,655,464,348,477.04
  5. Step 5: Solve for x
    x = 2,655,464,348,477.04/1,461,690.80
  6. Step 6: Final answer
    x = 1,816,707.30

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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.