Home / 821,452.95-1,232,620.55-342,011.73

Finding the Fourth Proportional to 821,452.95, 1,232,620.55 and 342,011.73

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Solution

The fourth proportional to 821,452.95, 1,232,620.55 and 342,011.73 is: 513,201.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,452.95 : 1,232,620.55 = 342,011.73 : x
  2. Step 2: Convert to fraction form
    821,452.95/1,232,620.55 = 342,011.73/x
  3. Step 3: Cross multiply
    821,452.95x = 1,232,620.55 × 342,011.73
  4. Step 4: Simplify right side
    821,452.95x = 421,570,685,028.99
  5. Step 5: Solve for x
    x = 421,570,685,028.99/821,452.95
  6. Step 6: Final answer
    x = 513,201.26

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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.