Home / 1,213,480.40-1,820,220.60-835,566.80

Finding the Fourth Proportional to 1,213,480.40, 1,820,220.60 and 835,566.80

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Solution

The fourth proportional to 1,213,480.40, 1,820,220.60 and 835,566.80 is: 1,253,350.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,480.40 : 1,820,220.60 = 835,566.80 : x
  2. Step 2: Convert to fraction form
    1,213,480.40/1,820,220.60 = 835,566.80/x
  3. Step 3: Cross multiply
    1,213,480.40x = 1,820,220.60 × 835,566.80
  4. Step 4: Simplify right side
    1,213,480.40x = 1,520,915,902,036.08
  5. Step 5: Solve for x
    x = 1,520,915,902,036.08/1,213,480.40
  6. Step 6: Final answer
    x = 1,253,350.20

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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.