Home / 821,452.58-1,232,619.98-342,011.36

Finding the Fourth Proportional to 821,452.58, 1,232,619.98 and 342,011.36

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Solution

The fourth proportional to 821,452.58, 1,232,619.98 and 342,011.36 is: 513,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,452.58 : 1,232,619.98 = 342,011.36 : x
  2. Step 2: Convert to fraction form
    821,452.58/1,232,619.98 = 342,011.36/x
  3. Step 3: Cross multiply
    821,452.58x = 1,232,619.98 × 342,011.36
  4. Step 4: Simplify right side
    821,452.58x = 421,570,030,414.90
  5. Step 5: Solve for x
    x = 421,570,030,414.90/821,452.58
  6. Step 6: Final answer
    x = 513,200.69

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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.