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Finding the Fourth Proportional to 481,256.40, 720,329.40 and 375,502.80

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Solution

The fourth proportional to 481,256.40, 720,329.40 and 375,502.80 is: 562,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,256.40 : 720,329.40 = 375,502.80 : x
  2. Step 2: Convert to fraction form
    481,256.40/720,329.40 = 375,502.80/x
  3. Step 3: Cross multiply
    481,256.40x = 720,329.40 × 375,502.80
  4. Step 4: Simplify right side
    481,256.40x = 270,485,706,622.32
  5. Step 5: Solve for x
    x = 270,485,706,622.32/481,256.40
  6. Step 6: Final answer
    x = 562,040.75

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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.