Home / 690,458.83-1,035,663.75-210,667.25

Finding the Fourth Proportional to 690,458.83, 1,035,663.75 and 210,667.25

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Solution

The fourth proportional to 690,458.83, 1,035,663.75 and 210,667.25 is: 315,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,458.83 : 1,035,663.75 = 210,667.25 : x
  2. Step 2: Convert to fraction form
    690,458.83/1,035,663.75 = 210,667.25/x
  3. Step 3: Cross multiply
    690,458.83x = 1,035,663.75 × 210,667.25
  4. Step 4: Simplify right side
    690,458.83x = 218,180,436,726.35
  5. Step 5: Solve for x
    x = 218,180,436,726.35/690,458.83
  6. Step 6: Final answer
    x = 315,993.41

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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.