Home / 815,923.18-1,223,884.54-254,957.68

Finding the Fourth Proportional to 815,923.18, 1,223,884.54 and 254,957.68

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Solution

The fourth proportional to 815,923.18, 1,223,884.54 and 254,957.68 is: 382,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,923.18 : 1,223,884.54 = 254,957.68 : x
  2. Step 2: Convert to fraction form
    815,923.18/1,223,884.54 = 254,957.68/x
  3. Step 3: Cross multiply
    815,923.18x = 1,223,884.54 × 254,957.68
  4. Step 4: Simplify right side
    815,923.18x = 312,038,762,906.27
  5. Step 5: Solve for x
    x = 312,038,762,906.27/815,923.18
  6. Step 6: Final answer
    x = 382,436.45

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1.5x scale

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.