Home / 654,378.94-981,580.71-205,089.86

Finding the Fourth Proportional to 654,378.94, 981,580.71 and 205,089.86

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Solution

The fourth proportional to 654,378.94, 981,580.71 and 205,089.86 is: 307,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,378.94 : 981,580.71 = 205,089.86 : x
  2. Step 2: Convert to fraction form
    654,378.94/981,580.71 = 205,089.86/x
  3. Step 3: Cross multiply
    654,378.94x = 981,580.71 × 205,089.86
  4. Step 4: Simplify right side
    654,378.94x = 201,312,253,615.64
  5. Step 5: Solve for x
    x = 201,312,253,615.64/654,378.94
  6. Step 6: Final answer
    x = 307,638.65

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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.