Home / 1,212,334.80-1,819,603.80-613,712.40

Finding the Fourth Proportional to 1,212,334.80, 1,819,603.80 and 613,712.40

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Solution

The fourth proportional to 1,212,334.80, 1,819,603.80 and 613,712.40 is: 921,126.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,334.80 : 1,819,603.80 = 613,712.40 : x
  2. Step 2: Convert to fraction form
    1,212,334.80/1,819,603.80 = 613,712.40/x
  3. Step 3: Cross multiply
    1,212,334.80x = 1,819,603.80 × 613,712.40
  4. Step 4: Simplify right side
    1,212,334.80x = 1,116,713,415,147.12
  5. Step 5: Solve for x
    x = 1,116,713,415,147.12/1,212,334.80
  6. Step 6: Final answer
    x = 921,126.26

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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.