Home / 1,231,321.80-1,843,872.30-808,307.40

Finding the Fourth Proportional to 1,231,321.80, 1,843,872.30 and 808,307.40

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Solution

The fourth proportional to 1,231,321.80, 1,843,872.30 and 808,307.40 is: 1,210,419.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,321.80 : 1,843,872.30 = 808,307.40 : x
  2. Step 2: Convert to fraction form
    1,231,321.80/1,843,872.30 = 808,307.40/x
  3. Step 3: Cross multiply
    1,231,321.80x = 1,843,872.30 × 808,307.40
  4. Step 4: Simplify right side
    1,231,321.80x = 1,490,415,624,745.02
  5. Step 5: Solve for x
    x = 1,490,415,624,745.02/1,231,321.80
  6. Step 6: Final answer
    x = 1,210,419.26

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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.