Home / 1,087,897.21-1,631,845.50-339,943.21

Finding the Fourth Proportional to 1,087,897.21, 1,631,845.50 and 339,943.21

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Solution

The fourth proportional to 1,087,897.21, 1,631,845.50 and 339,943.21 is: 509,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,897.21 : 1,631,845.50 = 339,943.21 : x
  2. Step 2: Convert to fraction form
    1,087,897.21/1,631,845.50 = 339,943.21/x
  3. Step 3: Cross multiply
    1,087,897.21x = 1,631,845.50 × 339,943.21
  4. Step 4: Simplify right side
    1,087,897.21x = 554,734,792,649.42
  5. Step 5: Solve for x
    x = 554,734,792,649.42/1,087,897.21
  6. Step 6: Final answer
    x = 509,914.71

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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.