Home / 488,890.90-733,664.40-288,999.10

Finding the Fourth Proportional to 488,890.90, 733,664.40 and 288,999.10

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Solution

The fourth proportional to 488,890.90, 733,664.40 and 288,999.10 is: 433,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,890.90 : 733,664.40 = 288,999.10 : x
  2. Step 2: Convert to fraction form
    488,890.90/733,664.40 = 288,999.10/x
  3. Step 3: Cross multiply
    488,890.90x = 733,664.40 × 288,999.10
  4. Step 4: Simplify right side
    488,890.90x = 212,028,351,302.04
  5. Step 5: Solve for x
    x = 212,028,351,302.04/488,890.90
  6. Step 6: Final answer
    x = 433,692.57

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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.