Home / 1,226,136.76-1,839,377.58-427,303.60

Finding the Fourth Proportional to 1,226,136.76, 1,839,377.58 and 427,303.60

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Solution

The fourth proportional to 1,226,136.76, 1,839,377.58 and 427,303.60 is: 641,015.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,136.76 : 1,839,377.58 = 427,303.60 : x
  2. Step 2: Convert to fraction form
    1,226,136.76/1,839,377.58 = 427,303.60/x
  3. Step 3: Cross multiply
    1,226,136.76x = 1,839,377.58 × 427,303.60
  4. Step 4: Simplify right side
    1,226,136.76x = 785,972,661,693.29
  5. Step 5: Solve for x
    x = 785,972,661,693.29/1,226,136.76
  6. Step 6: Final answer
    x = 641,015.49

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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.