Home / 488,916.40-733,806.60-288,986.80

Finding the Fourth Proportional to 488,916.40, 733,806.60 and 288,986.80

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Solution

The fourth proportional to 488,916.40, 733,806.60 and 288,986.80 is: 433,735.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,916.40 : 733,806.60 = 288,986.80 : x
  2. Step 2: Convert to fraction form
    488,916.40/733,806.60 = 288,986.80/x
  3. Step 3: Cross multiply
    488,916.40x = 733,806.60 × 288,986.80
  4. Step 4: Simplify right side
    488,916.40x = 212,060,421,152.88
  5. Step 5: Solve for x
    x = 212,060,421,152.88/488,916.40
  6. Step 6: Final answer
    x = 433,735.54

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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.