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Finding the Fourth Proportional to 988,880.80, 1,483,234.80 and 324,032.80

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Solution

The fourth proportional to 988,880.80, 1,483,234.80 and 324,032.80 is: 486,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,880.80 : 1,483,234.80 = 324,032.80 : x
  2. Step 2: Convert to fraction form
    988,880.80/1,483,234.80 = 324,032.80/x
  3. Step 3: Cross multiply
    988,880.80x = 1,483,234.80 × 324,032.80
  4. Step 4: Simplify right side
    988,880.80x = 480,616,725,301.44
  5. Step 5: Solve for x
    x = 480,616,725,301.44/988,880.80
  6. Step 6: Final answer
    x = 486,020.89

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1.5x scale

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.