Home / 1,320,032.12-1,980,881.15-561,872.36

Finding the Fourth Proportional to 1,320,032.12, 1,980,881.15 and 561,872.36

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Solution

The fourth proportional to 1,320,032.12, 1,980,881.15 and 561,872.36 is: 843,163.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,032.12 : 1,980,881.15 = 561,872.36 : x
  2. Step 2: Convert to fraction form
    1,320,032.12/1,980,881.15 = 561,872.36/x
  3. Step 3: Cross multiply
    1,320,032.12x = 1,980,881.15 × 561,872.36
  4. Step 4: Simplify right side
    1,320,032.12x = 1,113,002,353,916.25
  5. Step 5: Solve for x
    x = 1,113,002,353,916.25/1,320,032.12
  6. Step 6: Final answer
    x = 843,163.09

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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.