Home / 427,233.15-640,289.07-314,384.96

Finding the Fourth Proportional to 427,233.15, 640,289.07 and 314,384.96

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Solution

The fourth proportional to 427,233.15, 640,289.07 and 314,384.96 is: 471,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,233.15 : 640,289.07 = 314,384.96 : x
  2. Step 2: Convert to fraction form
    427,233.15/640,289.07 = 314,384.96/x
  3. Step 3: Cross multiply
    427,233.15x = 640,289.07 × 314,384.96
  4. Step 4: Simplify right side
    427,233.15x = 201,297,255,261.11
  5. Step 5: Solve for x
    x = 201,297,255,261.11/427,233.15
  6. Step 6: Final answer
    x = 471,164.88

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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.