Home / 1,690,123.32-2,535,189.30-427,951.08

Finding the Fourth Proportional to 1,690,123.32, 2,535,189.30 and 427,951.08

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Solution

The fourth proportional to 1,690,123.32, 2,535,189.30 and 427,951.08 is: 641,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,123.32 : 2,535,189.30 = 427,951.08 : x
  2. Step 2: Convert to fraction form
    1,690,123.32/2,535,189.30 = 427,951.08/x
  3. Step 3: Cross multiply
    1,690,123.32x = 2,535,189.30 × 427,951.08
  4. Step 4: Simplify right side
    1,690,123.32x = 1,084,936,998,939.44
  5. Step 5: Solve for x
    x = 1,084,936,998,939.44/1,690,123.32
  6. Step 6: Final answer
    x = 641,927.71

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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.