Home / 669,653.50-1,003,625.88-313,883.68

Finding the Fourth Proportional to 669,653.50, 1,003,625.88 and 313,883.68

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Solution

The fourth proportional to 669,653.50, 1,003,625.88 and 313,883.68 is: 470,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,653.50 : 1,003,625.88 = 313,883.68 : x
  2. Step 2: Convert to fraction form
    669,653.50/1,003,625.88 = 313,883.68/x
  3. Step 3: Cross multiply
    669,653.50x = 1,003,625.88 × 313,883.68
  4. Step 4: Simplify right side
    669,653.50x = 315,021,784,557.64
  5. Step 5: Solve for x
    x = 315,021,784,557.64/669,653.50
  6. Step 6: Final answer
    x = 470,425.05

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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.