Home / 427,174.59-589,985.27-290,972.35

Finding the Fourth Proportional to 427,174.59, 589,985.27 and 290,972.35

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Solution

The fourth proportional to 427,174.59, 589,985.27 and 290,972.35 is: 401,871.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,174.59 : 589,985.27 = 290,972.35 : x
  2. Step 2: Convert to fraction form
    427,174.59/589,985.27 = 290,972.35/x
  3. Step 3: Cross multiply
    427,174.59x = 589,985.27 × 290,972.35
  4. Step 4: Simplify right side
    427,174.59x = 171,669,400,851.05
  5. Step 5: Solve for x
    x = 171,669,400,851.05/427,174.59
  6. Step 6: Final answer
    x = 401,871.75

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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.