Home / 1,690,147.51-2,535,313.61-427,986.07

Finding the Fourth Proportional to 1,690,147.51, 2,535,313.61 and 427,986.07

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Solution

The fourth proportional to 1,690,147.51, 2,535,313.61 and 427,986.07 is: 642,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,147.51 : 2,535,313.61 = 427,986.07 : x
  2. Step 2: Convert to fraction form
    1,690,147.51/2,535,313.61 = 427,986.07/x
  3. Step 3: Cross multiply
    1,690,147.51x = 2,535,313.61 × 427,986.07
  4. Step 4: Simplify right side
    1,690,147.51x = 1,085,078,902,893.09
  5. Step 5: Solve for x
    x = 1,085,078,902,893.09/1,690,147.51
  6. Step 6: Final answer
    x = 642,002.49

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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.