Home / 558,694.14-771,015.30-316,986.90

Finding the Fourth Proportional to 558,694.14, 771,015.30 and 316,986.90

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Solution

The fourth proportional to 558,694.14, 771,015.30 and 316,986.90 is: 437,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,694.14 : 771,015.30 = 316,986.90 : x
  2. Step 2: Convert to fraction form
    558,694.14/771,015.30 = 316,986.90/x
  3. Step 3: Cross multiply
    558,694.14x = 771,015.30 × 316,986.90
  4. Step 4: Simplify right side
    558,694.14x = 244,401,749,799.57
  5. Step 5: Solve for x
    x = 244,401,749,799.57/558,694.14
  6. Step 6: Final answer
    x = 437,451.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.