Home / 1,245,683.80-1,865,415.30-822,669.40

Finding the Fourth Proportional to 1,245,683.80, 1,865,415.30 and 822,669.40

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Solution

The fourth proportional to 1,245,683.80, 1,865,415.30 and 822,669.40 is: 1,231,949.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,683.80 : 1,865,415.30 = 822,669.40 : x
  2. Step 2: Convert to fraction form
    1,245,683.80/1,865,415.30 = 822,669.40/x
  3. Step 3: Cross multiply
    1,245,683.80x = 1,865,415.30 × 822,669.40
  4. Step 4: Simplify right side
    1,245,683.80x = 1,534,620,085,601.82
  5. Step 5: Solve for x
    x = 1,534,620,085,601.82/1,245,683.80
  6. Step 6: Final answer
    x = 1,231,949.94

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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.