Home / 815,447.61-1,223,076.36-216,455.34

Finding the Fourth Proportional to 815,447.61, 1,223,076.36 and 216,455.34

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Solution

The fourth proportional to 815,447.61, 1,223,076.36 and 216,455.34 is: 324,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,447.61 : 1,223,076.36 = 216,455.34 : x
  2. Step 2: Convert to fraction form
    815,447.61/1,223,076.36 = 216,455.34/x
  3. Step 3: Cross multiply
    815,447.61x = 1,223,076.36 × 216,455.34
  4. Step 4: Simplify right side
    815,447.61x = 264,741,409,349.76
  5. Step 5: Solve for x
    x = 264,741,409,349.76/815,447.61
  6. Step 6: Final answer
    x = 324,657.78

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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.