Home / 654,321.63-981,482.67-205,077.36

Finding the Fourth Proportional to 654,321.63, 981,482.67 and 205,077.36

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Solution

The fourth proportional to 654,321.63, 981,482.67 and 205,077.36 is: 307,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,321.63 : 981,482.67 = 205,077.36 : x
  2. Step 2: Convert to fraction form
    654,321.63/981,482.67 = 205,077.36/x
  3. Step 3: Cross multiply
    654,321.63x = 981,482.67 × 205,077.36
  4. Step 4: Simplify right side
    654,321.63x = 201,279,874,849.35
  5. Step 5: Solve for x
    x = 201,279,874,849.35/654,321.63
  6. Step 6: Final answer
    x = 307,616.11

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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.