Home / 1,221,222.78-1,831,812.30-501,408.18

Finding the Fourth Proportional to 1,221,222.78, 1,831,812.30 and 501,408.18

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Solution

The fourth proportional to 1,221,222.78, 1,831,812.30 and 501,408.18 is: 752,103.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,222.78 : 1,831,812.30 = 501,408.18 : x
  2. Step 2: Convert to fraction form
    1,221,222.78/1,831,812.30 = 501,408.18/x
  3. Step 3: Cross multiply
    1,221,222.78x = 1,831,812.30 × 501,408.18
  4. Step 4: Simplify right side
    1,221,222.78x = 918,485,671,444.61
  5. Step 5: Solve for x
    x = 918,485,671,444.61/1,221,222.78
  6. Step 6: Final answer
    x = 752,103.29

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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.