Home / 815,616.83-1,223,437.55-283,154.78

Finding the Fourth Proportional to 815,616.83, 1,223,437.55 and 283,154.78

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Solution

The fourth proportional to 815,616.83, 1,223,437.55 and 283,154.78 is: 424,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,616.83 : 1,223,437.55 = 283,154.78 : x
  2. Step 2: Convert to fraction form
    815,616.83/1,223,437.55 = 283,154.78/x
  3. Step 3: Cross multiply
    815,616.83x = 1,223,437.55 × 283,154.78
  4. Step 4: Simplify right side
    815,616.83x = 346,422,190,313.99
  5. Step 5: Solve for x
    x = 346,422,190,313.99/815,616.83
  6. Step 6: Final answer
    x = 424,736.44

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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.