Home / 831,981.56-1,248,159.05-263,396.66

Finding the Fourth Proportional to 831,981.56, 1,248,159.05 and 263,396.66

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Solution

The fourth proportional to 831,981.56, 1,248,159.05 and 263,396.66 is: 395,154.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,981.56 : 1,248,159.05 = 263,396.66 : x
  2. Step 2: Convert to fraction form
    831,981.56/1,248,159.05 = 263,396.66/x
  3. Step 3: Cross multiply
    831,981.56x = 1,248,159.05 × 263,396.66
  4. Step 4: Simplify right side
    831,981.56x = 328,760,917,361.00
  5. Step 5: Solve for x
    x = 328,760,917,361.00/831,981.56
  6. Step 6: Final answer
    x = 395,154.09

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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.