Home / 479,258.26-661,440.55-304,845.45

Finding the Fourth Proportional to 479,258.26, 661,440.55 and 304,845.45

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Solution

The fourth proportional to 479,258.26, 661,440.55 and 304,845.45 is: 420,727.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,258.26 : 661,440.55 = 304,845.45 : x
  2. Step 2: Convert to fraction form
    479,258.26/661,440.55 = 304,845.45/x
  3. Step 3: Cross multiply
    479,258.26x = 661,440.55 × 304,845.45
  4. Step 4: Simplify right side
    479,258.26x = 201,637,142,113.00
  5. Step 5: Solve for x
    x = 201,637,142,113.00/479,258.26
  6. Step 6: Final answer
    x = 420,727.53

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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.