Home / 1,215,200.40-1,821,342.60-504,862.80

Finding the Fourth Proportional to 1,215,200.40, 1,821,342.60 and 504,862.80

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Solution

The fourth proportional to 1,215,200.40, 1,821,342.60 and 504,862.80 is: 756,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,200.40 : 1,821,342.60 = 504,862.80 : x
  2. Step 2: Convert to fraction form
    1,215,200.40/1,821,342.60 = 504,862.80/x
  3. Step 3: Cross multiply
    1,215,200.40x = 1,821,342.60 × 504,862.80
  4. Step 4: Simplify right side
    1,215,200.40x = 919,528,124,795.28
  5. Step 5: Solve for x
    x = 919,528,124,795.28/1,215,200.40
  6. Step 6: Final answer
    x = 756,688.46

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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.