Home / 1,221,013.89-1,831,492.26-322,518.38

Finding the Fourth Proportional to 1,221,013.89, 1,831,492.26 and 322,518.38

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Solution

The fourth proportional to 1,221,013.89, 1,831,492.26 and 322,518.38 is: 483,770.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,013.89 : 1,831,492.26 = 322,518.38 : x
  2. Step 2: Convert to fraction form
    1,221,013.89/1,831,492.26 = 322,518.38/x
  3. Step 3: Cross multiply
    1,221,013.89x = 1,831,492.26 × 322,518.38
  4. Step 4: Simplify right side
    1,221,013.89x = 590,689,907,520.28
  5. Step 5: Solve for x
    x = 590,689,907,520.28/1,221,013.89
  6. Step 6: Final answer
    x = 483,770.01

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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.