Home / 685,111.40-1,027,667.10-673,301.60

Finding the Fourth Proportional to 685,111.40, 1,027,667.10 and 673,301.60

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Solution

The fourth proportional to 685,111.40, 1,027,667.10 and 673,301.60 is: 1,009,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,111.40 : 1,027,667.10 = 673,301.60 : x
  2. Step 2: Convert to fraction form
    685,111.40/1,027,667.10 = 673,301.60/x
  3. Step 3: Cross multiply
    685,111.40x = 1,027,667.10 × 673,301.60
  4. Step 4: Simplify right side
    685,111.40x = 691,929,902,697.36
  5. Step 5: Solve for x
    x = 691,929,902,697.36/685,111.40
  6. Step 6: Final answer
    x = 1,009,952.40

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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.