Home / 1,122,310.80-1,685,021.40-885,920.40

Finding the Fourth Proportional to 1,122,310.80, 1,685,021.40 and 885,920.40

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Solution

The fourth proportional to 1,122,310.80, 1,685,021.40 and 885,920.40 is: 1,330,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,310.80 : 1,685,021.40 = 885,920.40 : x
  2. Step 2: Convert to fraction form
    1,122,310.80/1,685,021.40 = 885,920.40/x
  3. Step 3: Cross multiply
    1,122,310.80x = 1,685,021.40 × 885,920.40
  4. Step 4: Simplify right side
    1,122,310.80x = 1,492,794,832,696.56
  5. Step 5: Solve for x
    x = 1,492,794,832,696.56/1,122,310.80
  6. Step 6: Final answer
    x = 1,330,108.23

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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.