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Finding the Fourth Proportional to 488,409.40, 731,447.70 and 299,452.60

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Solution

The fourth proportional to 488,409.40, 731,447.70 and 299,452.60 is: 448,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,409.40 : 731,447.70 = 299,452.60 : x
  2. Step 2: Convert to fraction form
    488,409.40/731,447.70 = 299,452.60/x
  3. Step 3: Cross multiply
    488,409.40x = 731,447.70 × 299,452.60
  4. Step 4: Simplify right side
    488,409.40x = 219,033,915,529.02
  5. Step 5: Solve for x
    x = 219,033,915,529.02/488,409.40
  6. Step 6: Final answer
    x = 448,463.76

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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.