Home / 654,412.64-981,590.40-205,123.26

Finding the Fourth Proportional to 654,412.64, 981,590.40 and 205,123.26

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Solution

The fourth proportional to 654,412.64, 981,590.40 and 205,123.26 is: 307,675.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,412.64 : 981,590.40 = 205,123.26 : x
  2. Step 2: Convert to fraction form
    654,412.64/981,590.40 = 205,123.26/x
  3. Step 3: Cross multiply
    654,412.64x = 981,590.40 × 205,123.26
  4. Step 4: Simplify right side
    654,412.64x = 201,347,022,832.70
  5. Step 5: Solve for x
    x = 201,347,022,832.70/654,412.64
  6. Step 6: Final answer
    x = 307,675.94

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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.