Home / 673,054.30-1,008,220.65-419,556.70

Finding the Fourth Proportional to 673,054.30, 1,008,220.65 and 419,556.70

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Solution

The fourth proportional to 673,054.30, 1,008,220.65 and 419,556.70 is: 628,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,054.30 : 1,008,220.65 = 419,556.70 : x
  2. Step 2: Convert to fraction form
    673,054.30/1,008,220.65 = 419,556.70/x
  3. Step 3: Cross multiply
    673,054.30x = 1,008,220.65 × 419,556.70
  4. Step 4: Simplify right side
    673,054.30x = 423,005,728,785.86
  5. Step 5: Solve for x
    x = 423,005,728,785.86/673,054.30
  6. Step 6: Final answer
    x = 628,486.78

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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.