Home / 717,080.20-1,075,620.30-398,215.60

Finding the Fourth Proportional to 717,080.20, 1,075,620.30 and 398,215.60

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Solution

The fourth proportional to 717,080.20, 1,075,620.30 and 398,215.60 is: 597,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,080.20 : 1,075,620.30 = 398,215.60 : x
  2. Step 2: Convert to fraction form
    717,080.20/1,075,620.30 = 398,215.60/x
  3. Step 3: Cross multiply
    717,080.20x = 1,075,620.30 × 398,215.60
  4. Step 4: Simplify right side
    717,080.20x = 428,328,783,136.68
  5. Step 5: Solve for x
    x = 428,328,783,136.68/717,080.20
  6. Step 6: Final answer
    x = 597,323.40

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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.