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Finding the Fourth Proportional to 450,698.29, 621,971 and 246,745.80

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Solution

The fourth proportional to 450,698.29, 621,971 and 246,745.80 is: 340,513.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,698.29 : 621,971 = 246,745.80 : x
  2. Step 2: Convert to fraction form
    450,698.29/621,971 = 246,745.80/x
  3. Step 3: Cross multiply
    450,698.29x = 621,971 × 246,745.80
  4. Step 4: Simplify right side
    450,698.29x = 153,468,731,971.80
  5. Step 5: Solve for x
    x = 153,468,731,971.80/450,698.29
  6. Step 6: Final answer
    x = 340,513.23

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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.