Home / 494,816.40-741,349.80-438,829.20

Finding the Fourth Proportional to 494,816.40, 741,349.80 and 438,829.20

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Solution

The fourth proportional to 494,816.40, 741,349.80 and 438,829.20 is: 657,467.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,816.40 : 741,349.80 = 438,829.20 : x
  2. Step 2: Convert to fraction form
    494,816.40/741,349.80 = 438,829.20/x
  3. Step 3: Cross multiply
    494,816.40x = 741,349.80 × 438,829.20
  4. Step 4: Simplify right side
    494,816.40x = 325,325,939,654.16
  5. Step 5: Solve for x
    x = 325,325,939,654.16/494,816.40
  6. Step 6: Final answer
    x = 657,467.98

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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.