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Finding the Fourth Proportional to 479,615.81, 661,874.40 and 264,751.25

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Solution

The fourth proportional to 479,615.81, 661,874.40 and 264,751.25 is: 365,359.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,615.81 : 661,874.40 = 264,751.25 : x
  2. Step 2: Convert to fraction form
    479,615.81/661,874.40 = 264,751.25/x
  3. Step 3: Cross multiply
    479,615.81x = 661,874.40 × 264,751.25
  4. Step 4: Simplify right side
    479,615.81x = 175,232,071,433.63
  5. Step 5: Solve for x
    x = 175,232,071,433.63/479,615.81
  6. Step 6: Final answer
    x = 365,359.25

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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.