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Finding the Fourth Proportional to 452,786.96, 624,849 and 283,120.40

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Solution

The fourth proportional to 452,786.96, 624,849 and 283,120.40 is: 390,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,786.96 : 624,849 = 283,120.40 : x
  2. Step 2: Convert to fraction form
    452,786.96/624,849 = 283,120.40/x
  3. Step 3: Cross multiply
    452,786.96x = 624,849 × 283,120.40
  4. Step 4: Simplify right side
    452,786.96x = 176,907,498,819.60
  5. Step 5: Solve for x
    x = 176,907,498,819.60/452,786.96
  6. Step 6: Final answer
    x = 390,708.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.