Home / 690,275.63-1,035,570.30-210,546.33

Finding the Fourth Proportional to 690,275.63, 1,035,570.30 and 210,546.33

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Solution

The fourth proportional to 690,275.63, 1,035,570.30 and 210,546.33 is: 315,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,275.63 : 1,035,570.30 = 210,546.33 : x
  2. Step 2: Convert to fraction form
    690,275.63/1,035,570.30 = 210,546.33/x
  3. Step 3: Cross multiply
    690,275.63x = 1,035,570.30 × 210,546.33
  4. Step 4: Simplify right side
    690,275.63x = 218,035,530,562.82
  5. Step 5: Solve for x
    x = 218,035,530,562.82/690,275.63
  6. Step 6: Final answer
    x = 315,867.34

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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.