Home / 815,713.40-1,223,742.90-247,047.80

Finding the Fourth Proportional to 815,713.40, 1,223,742.90 and 247,047.80

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Solution

The fourth proportional to 815,713.40, 1,223,742.90 and 247,047.80 is: 370,624.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,713.40 : 1,223,742.90 = 247,047.80 : x
  2. Step 2: Convert to fraction form
    815,713.40/1,223,742.90 = 247,047.80/x
  3. Step 3: Cross multiply
    815,713.40x = 1,223,742.90 × 247,047.80
  4. Step 4: Simplify right side
    815,713.40x = 302,322,991,210.62
  5. Step 5: Solve for x
    x = 302,322,991,210.62/815,713.40
  6. Step 6: Final answer
    x = 370,624.03

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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.