Home / 869,179.05-1,303,768.58-308,140.65

Finding the Fourth Proportional to 869,179.05, 1,303,768.58 and 308,140.65

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Solution

The fourth proportional to 869,179.05, 1,303,768.58 and 308,140.65 is: 462,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,179.05 : 1,303,768.58 = 308,140.65 : x
  2. Step 2: Convert to fraction form
    869,179.05/1,303,768.58 = 308,140.65/x
  3. Step 3: Cross multiply
    869,179.05x = 1,303,768.58 × 308,140.65
  4. Step 4: Simplify right side
    869,179.05x = 401,744,096,150.07
  5. Step 5: Solve for x
    x = 401,744,096,150.07/869,179.05
  6. Step 6: Final answer
    x = 462,210.98

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Double scale
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Similar ratio
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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.