Home / 929,821.78-1,283,173.01-521,953.03

Finding the Fourth Proportional to 929,821.78, 1,283,173.01 and 521,953.03

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Solution

The fourth proportional to 929,821.78, 1,283,173.01 and 521,953.03 is: 720,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,821.78 : 1,283,173.01 = 521,953.03 : x
  2. Step 2: Convert to fraction form
    929,821.78/1,283,173.01 = 521,953.03/x
  3. Step 3: Cross multiply
    929,821.78x = 1,283,173.01 × 521,953.03
  4. Step 4: Simplify right side
    929,821.78x = 669,756,040,583.72
  5. Step 5: Solve for x
    x = 669,756,040,583.72/929,821.78
  6. Step 6: Final answer
    x = 720,305.82

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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.