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Finding the Fourth Proportional to 886,880.40, 1,330,493.40 and 354,310.80

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Solution

The fourth proportional to 886,880.40, 1,330,493.40 and 354,310.80 is: 531,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,880.40 : 1,330,493.40 = 354,310.80 : x
  2. Step 2: Convert to fraction form
    886,880.40/1,330,493.40 = 354,310.80/x
  3. Step 3: Cross multiply
    886,880.40x = 1,330,493.40 × 354,310.80
  4. Step 4: Simplify right side
    886,880.40x = 471,408,180,948.72
  5. Step 5: Solve for x
    x = 471,408,180,948.72/886,880.40
  6. Step 6: Final answer
    x = 531,535.23

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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.