Home / 1,424,495.70-2,136,743.55-427,223.70

Finding the Fourth Proportional to 1,424,495.70, 2,136,743.55 and 427,223.70

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Solution

The fourth proportional to 1,424,495.70, 2,136,743.55 and 427,223.70 is: 640,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,495.70 : 2,136,743.55 = 427,223.70 : x
  2. Step 2: Convert to fraction form
    1,424,495.70/2,136,743.55 = 427,223.70/x
  3. Step 3: Cross multiply
    1,424,495.70x = 2,136,743.55 × 427,223.70
  4. Step 4: Simplify right side
    1,424,495.70x = 912,867,485,382.14
  5. Step 5: Solve for x
    x = 912,867,485,382.14/1,424,495.70
  6. Step 6: Final answer
    x = 640,835.55

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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.