Home / 489,905.10-734,943.69-223,692.57

Finding the Fourth Proportional to 489,905.10, 734,943.69 and 223,692.57

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Solution

The fourth proportional to 489,905.10, 734,943.69 and 223,692.57 is: 335,578.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,905.10 : 734,943.69 = 223,692.57 : x
  2. Step 2: Convert to fraction form
    489,905.10/734,943.69 = 223,692.57/x
  3. Step 3: Cross multiply
    489,905.10x = 734,943.69 × 223,692.57
  4. Step 4: Simplify right side
    489,905.10x = 164,401,442,821.38
  5. Step 5: Solve for x
    x = 164,401,442,821.38/489,905.10
  6. Step 6: Final answer
    x = 335,578.14

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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.