Home / 645,550.20-967,634.10-290,503.80

Finding the Fourth Proportional to 645,550.20, 967,634.10 and 290,503.80

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Solution

The fourth proportional to 645,550.20, 967,634.10 and 290,503.80 is: 435,444.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,550.20 : 967,634.10 = 290,503.80 : x
  2. Step 2: Convert to fraction form
    645,550.20/967,634.10 = 290,503.80/x
  3. Step 3: Cross multiply
    645,550.20x = 967,634.10 × 290,503.80
  4. Step 4: Simplify right side
    645,550.20x = 281,101,383,059.58
  5. Step 5: Solve for x
    x = 281,101,383,059.58/645,550.20
  6. Step 6: Final answer
    x = 435,444.65

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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.