Home / 654,448.10-981,380.55-299,570.90

Finding the Fourth Proportional to 654,448.10, 981,380.55 and 299,570.90

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Solution

The fourth proportional to 654,448.10, 981,380.55 and 299,570.90 is: 449,222.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,448.10 : 981,380.55 = 299,570.90 : x
  2. Step 2: Convert to fraction form
    654,448.10/981,380.55 = 299,570.90/x
  3. Step 3: Cross multiply
    654,448.10x = 981,380.55 × 299,570.90
  4. Step 4: Simplify right side
    654,448.10x = 293,993,054,606.00
  5. Step 5: Solve for x
    x = 293,993,054,606.00/654,448.10
  6. Step 6: Final answer
    x = 449,222.87

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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.