Home / 855,102.80-1,281,852.30-322,981.40

Finding the Fourth Proportional to 855,102.80, 1,281,852.30 and 322,981.40

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Solution

The fourth proportional to 855,102.80, 1,281,852.30 and 322,981.40 is: 484,169.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,102.80 : 1,281,852.30 = 322,981.40 : x
  2. Step 2: Convert to fraction form
    855,102.80/1,281,852.30 = 322,981.40/x
  3. Step 3: Cross multiply
    855,102.80x = 1,281,852.30 × 322,981.40
  4. Step 4: Simplify right side
    855,102.80x = 414,014,450,447.22
  5. Step 5: Solve for x
    x = 414,014,450,447.22/855,102.80
  6. Step 6: Final answer
    x = 484,169.21

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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.