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Finding the Fourth Proportional to 404,574.80, 605,825.40 and 298,821.20

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Solution

The fourth proportional to 404,574.80, 605,825.40 and 298,821.20 is: 447,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,574.80 : 605,825.40 = 298,821.20 : x
  2. Step 2: Convert to fraction form
    404,574.80/605,825.40 = 298,821.20/x
  3. Step 3: Cross multiply
    404,574.80x = 605,825.40 × 298,821.20
  4. Step 4: Simplify right side
    404,574.80x = 181,033,473,018.48
  5. Step 5: Solve for x
    x = 181,033,473,018.48/404,574.80
  6. Step 6: Final answer
    x = 447,466.01

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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.