Home / 1,424,830.86-2,137,719.22-465,317.78

Finding the Fourth Proportional to 1,424,830.86, 2,137,719.22 and 465,317.78

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Solution

The fourth proportional to 1,424,830.86, 2,137,719.22 and 465,317.78 is: 698,131.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,830.86 : 2,137,719.22 = 465,317.78 : x
  2. Step 2: Convert to fraction form
    1,424,830.86/2,137,719.22 = 465,317.78/x
  3. Step 3: Cross multiply
    1,424,830.86x = 2,137,719.22 × 465,317.78
  4. Step 4: Simplify right side
    1,424,830.86x = 994,718,749,861.84
  5. Step 5: Solve for x
    x = 994,718,749,861.84/1,424,830.86
  6. Step 6: Final answer
    x = 698,131.11

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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.