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Finding the Fourth Proportional to 868,861.60, 1,302,903.60 and 336,205.60

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Solution

The fourth proportional to 868,861.60, 1,302,903.60 and 336,205.60 is: 504,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,861.60 : 1,302,903.60 = 336,205.60 : x
  2. Step 2: Convert to fraction form
    868,861.60/1,302,903.60 = 336,205.60/x
  3. Step 3: Cross multiply
    868,861.60x = 1,302,903.60 × 336,205.60
  4. Step 4: Simplify right side
    868,861.60x = 438,043,486,580.16
  5. Step 5: Solve for x
    x = 438,043,486,580.16/868,861.60
  6. Step 6: Final answer
    x = 504,157.95

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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.