Home / 654,378.42-981,579.93-205,089.34

Finding the Fourth Proportional to 654,378.42, 981,579.93 and 205,089.34

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Solution

The fourth proportional to 654,378.42, 981,579.93 and 205,089.34 is: 307,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,378.42 : 981,579.93 = 205,089.34 : x
  2. Step 2: Convert to fraction form
    654,378.42/981,579.93 = 205,089.34/x
  3. Step 3: Cross multiply
    654,378.42x = 981,579.93 × 205,089.34
  4. Step 4: Simplify right side
    654,378.42x = 201,311,579,488.22
  5. Step 5: Solve for x
    x = 201,311,579,488.22/654,378.42
  6. Step 6: Final answer
    x = 307,637.87

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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.