Home / 859,741.20-1,289,611.80-334,429.20

Finding the Fourth Proportional to 859,741.20, 1,289,611.80 and 334,429.20

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Solution

The fourth proportional to 859,741.20, 1,289,611.80 and 334,429.20 is: 501,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,741.20 : 1,289,611.80 = 334,429.20 : x
  2. Step 2: Convert to fraction form
    859,741.20/1,289,611.80 = 334,429.20/x
  3. Step 3: Cross multiply
    859,741.20x = 1,289,611.80 × 334,429.20
  4. Step 4: Simplify right side
    859,741.20x = 431,283,842,584.56
  5. Step 5: Solve for x
    x = 431,283,842,584.56/859,741.20
  6. Step 6: Final answer
    x = 501,643.80

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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.