Home / 677,277.30-1,015,971.28-340,144.56

Finding the Fourth Proportional to 677,277.30, 1,015,971.28 and 340,144.56

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Solution

The fourth proportional to 677,277.30, 1,015,971.28 and 340,144.56 is: 510,244.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,277.30 : 1,015,971.28 = 340,144.56 : x
  2. Step 2: Convert to fraction form
    677,277.30/1,015,971.28 = 340,144.56/x
  3. Step 3: Cross multiply
    677,277.30x = 1,015,971.28 × 340,144.56
  4. Step 4: Simplify right side
    677,277.30x = 345,577,104,008.24
  5. Step 5: Solve for x
    x = 345,577,104,008.24/677,277.30
  6. Step 6: Final answer
    x = 510,244.63

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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.