Home / 1,221,009.39-1,831,485.53-322,513.85

Finding the Fourth Proportional to 1,221,009.39, 1,831,485.53 and 322,513.85

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Solution

The fourth proportional to 1,221,009.39, 1,831,485.53 and 322,513.85 is: 483,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,009.39 : 1,831,485.53 = 322,513.85 : x
  2. Step 2: Convert to fraction form
    1,221,009.39/1,831,485.53 = 322,513.85/x
  3. Step 3: Cross multiply
    1,221,009.39x = 1,831,485.53 × 322,513.85
  4. Step 4: Simplify right side
    1,221,009.39x = 590,679,454,884.59
  5. Step 5: Solve for x
    x = 590,679,454,884.59/1,221,009.39
  6. Step 6: Final answer
    x = 483,763.24

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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.