Home / 869,146.20-1,303,848.90-308,136.60

Finding the Fourth Proportional to 869,146.20, 1,303,848.90 and 308,136.60

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Solution

The fourth proportional to 869,146.20, 1,303,848.90 and 308,136.60 is: 462,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,146.20 : 1,303,848.90 = 308,136.60 : x
  2. Step 2: Convert to fraction form
    869,146.20/1,303,848.90 = 308,136.60/x
  3. Step 3: Cross multiply
    869,146.20x = 1,303,848.90 × 308,136.60
  4. Step 4: Simplify right side
    869,146.20x = 401,763,566,959.74
  5. Step 5: Solve for x
    x = 401,763,566,959.74/869,146.20
  6. Step 6: Final answer
    x = 462,250.85

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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.