Home / 869,074.20-1,303,740.90-308,064.60

Finding the Fourth Proportional to 869,074.20, 1,303,740.90 and 308,064.60

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Solution

The fourth proportional to 869,074.20, 1,303,740.90 and 308,064.60 is: 462,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,074.20 : 1,303,740.90 = 308,064.60 : x
  2. Step 2: Convert to fraction form
    869,074.20/1,303,740.90 = 308,064.60/x
  3. Step 3: Cross multiply
    869,074.20x = 1,303,740.90 × 308,064.60
  4. Step 4: Simplify right side
    869,074.20x = 401,636,418,862.14
  5. Step 5: Solve for x
    x = 401,636,418,862.14/869,074.20
  6. Step 6: Final answer
    x = 462,142.84

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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.