Home / 815,970.16-1,223,954.96-255,004.64

Finding the Fourth Proportional to 815,970.16, 1,223,954.96 and 255,004.64

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Solution

The fourth proportional to 815,970.16, 1,223,954.96 and 255,004.64 is: 382,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,970.16 : 1,223,954.96 = 255,004.64 : x
  2. Step 2: Convert to fraction form
    815,970.16/1,223,954.96 = 255,004.64/x
  3. Step 3: Cross multiply
    815,970.16x = 1,223,954.96 × 255,004.64
  4. Step 4: Simplify right side
    815,970.16x = 312,114,193,951.01
  5. Step 5: Solve for x
    x = 312,114,193,951.01/815,970.16
  6. Step 6: Final answer
    x = 382,506.87

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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.