Home / 677,277.45-1,015,971.45-340,144.68

Finding the Fourth Proportional to 677,277.45, 1,015,971.45 and 340,144.68

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Solution

The fourth proportional to 677,277.45, 1,015,971.45 and 340,144.68 is: 510,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,277.45 : 1,015,971.45 = 340,144.68 : x
  2. Step 2: Convert to fraction form
    677,277.45/1,015,971.45 = 340,144.68/x
  3. Step 3: Cross multiply
    677,277.45x = 1,015,971.45 × 340,144.68
  4. Step 4: Simplify right side
    677,277.45x = 345,577,283,749.39
  5. Step 5: Solve for x
    x = 345,577,283,749.39/677,277.45
  6. Step 6: Final answer
    x = 510,244.78

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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.