Home / 815,964.63-1,223,946.72-254,999.13

Finding the Fourth Proportional to 815,964.63, 1,223,946.72 and 254,999.13

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Solution

The fourth proportional to 815,964.63, 1,223,946.72 and 254,999.13 is: 382,498.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,964.63 : 1,223,946.72 = 254,999.13 : x
  2. Step 2: Convert to fraction form
    815,964.63/1,223,946.72 = 254,999.13/x
  3. Step 3: Cross multiply
    815,964.63x = 1,223,946.72 × 254,999.13
  4. Step 4: Simplify right side
    815,964.63x = 312,105,348,766.35
  5. Step 5: Solve for x
    x = 312,105,348,766.35/815,964.63
  6. Step 6: Final answer
    x = 382,498.62

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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.