Home / 815,362.81-1,223,104.35-216,310.70

Finding the Fourth Proportional to 815,362.81, 1,223,104.35 and 216,310.70

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Solution

The fourth proportional to 815,362.81, 1,223,104.35 and 216,310.70 is: 324,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,362.81 : 1,223,104.35 = 216,310.70 : x
  2. Step 2: Convert to fraction form
    815,362.81/1,223,104.35 = 216,310.70/x
  3. Step 3: Cross multiply
    815,362.81x = 1,223,104.35 × 216,310.70
  4. Step 4: Simplify right side
    815,362.81x = 264,570,561,990.47
  5. Step 5: Solve for x
    x = 264,570,561,990.47/815,362.81
  6. Step 6: Final answer
    x = 324,482.01

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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.