Home / 815,717.40-1,223,748.90-247,051.80

Finding the Fourth Proportional to 815,717.40, 1,223,748.90 and 247,051.80

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Solution

The fourth proportional to 815,717.40, 1,223,748.90 and 247,051.80 is: 370,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,717.40 : 1,223,748.90 = 247,051.80 : x
  2. Step 2: Convert to fraction form
    815,717.40/1,223,748.90 = 247,051.80/x
  3. Step 3: Cross multiply
    815,717.40x = 1,223,748.90 × 247,051.80
  4. Step 4: Simplify right side
    815,717.40x = 302,329,368,493.02
  5. Step 5: Solve for x
    x = 302,329,368,493.02/815,717.40
  6. Step 6: Final answer
    x = 370,630.03

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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.