Home / 820,091.07-1,229,139.29-580,274.07

Finding the Fourth Proportional to 820,091.07, 1,229,139.29 and 580,274.07

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Solution

The fourth proportional to 820,091.07, 1,229,139.29 and 580,274.07 is: 869,705.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,091.07 : 1,229,139.29 = 580,274.07 : x
  2. Step 2: Convert to fraction form
    820,091.07/1,229,139.29 = 580,274.07/x
  3. Step 3: Cross multiply
    820,091.07x = 1,229,139.29 × 580,274.07
  4. Step 4: Simplify right side
    820,091.07x = 713,237,655,503.84
  5. Step 5: Solve for x
    x = 713,237,655,503.84/820,091.07
  6. Step 6: Final answer
    x = 869,705.43

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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.