Home / 817,735.89-1,226,764.31-285,274.29

Finding the Fourth Proportional to 817,735.89, 1,226,764.31 and 285,274.29

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Solution

The fourth proportional to 817,735.89, 1,226,764.31 and 285,274.29 is: 427,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,735.89 : 1,226,764.31 = 285,274.29 : x
  2. Step 2: Convert to fraction form
    817,735.89/1,226,764.31 = 285,274.29/x
  3. Step 3: Cross multiply
    817,735.89x = 1,226,764.31 × 285,274.29
  4. Step 4: Simplify right side
    817,735.89x = 349,964,316,106.22
  5. Step 5: Solve for x
    x = 349,964,316,106.22/817,735.89
  6. Step 6: Final answer
    x = 427,967.42

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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.