Home / 427,722.78-589,648.94-291,582.02

Finding the Fourth Proportional to 427,722.78, 589,648.94 and 291,582.02

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Solution

The fourth proportional to 427,722.78, 589,648.94 and 291,582.02 is: 401,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,722.78 : 589,648.94 = 291,582.02 : x
  2. Step 2: Convert to fraction form
    427,722.78/589,648.94 = 291,582.02/x
  3. Step 3: Cross multiply
    427,722.78x = 589,648.94 × 291,582.02
  4. Step 4: Simplify right side
    427,722.78x = 171,931,029,016.06
  5. Step 5: Solve for x
    x = 171,931,029,016.06/427,722.78
  6. Step 6: Final answer
    x = 401,968.37

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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.