Home / 683,136.80-1,024,705.20-328,065.20

Finding the Fourth Proportional to 683,136.80, 1,024,705.20 and 328,065.20

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Solution

The fourth proportional to 683,136.80, 1,024,705.20 and 328,065.20 is: 492,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,136.80 : 1,024,705.20 = 328,065.20 : x
  2. Step 2: Convert to fraction form
    683,136.80/1,024,705.20 = 328,065.20/x
  3. Step 3: Cross multiply
    683,136.80x = 1,024,705.20 × 328,065.20
  4. Step 4: Simplify right side
    683,136.80x = 336,170,116,379.04
  5. Step 5: Solve for x
    x = 336,170,116,379.04/683,136.80
  6. Step 6: Final answer
    x = 492,097.80

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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.