Home / 820,091.85-1,130,721.30-674,388.47

Finding the Fourth Proportional to 820,091.85, 1,130,721.30 and 674,388.47

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Solution

The fourth proportional to 820,091.85, 1,130,721.30 and 674,388.47 is: 929,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,091.85 : 1,130,721.30 = 674,388.47 : x
  2. Step 2: Convert to fraction form
    820,091.85/1,130,721.30 = 674,388.47/x
  3. Step 3: Cross multiply
    820,091.85x = 1,130,721.30 × 674,388.47
  4. Step 4: Simplify right side
    820,091.85x = 762,545,401,849.81
  5. Step 5: Solve for x
    x = 762,545,401,849.81/820,091.85
  6. Step 6: Final answer
    x = 929,829.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.