Home / 690,336.72-1,035,564.92-210,672.51

Finding the Fourth Proportional to 690,336.72, 1,035,564.92 and 210,672.51

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Solution

The fourth proportional to 690,336.72, 1,035,564.92 and 210,672.51 is: 316,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,336.72 : 1,035,564.92 = 210,672.51 : x
  2. Step 2: Convert to fraction form
    690,336.72/1,035,564.92 = 210,672.51/x
  3. Step 3: Cross multiply
    690,336.72x = 1,035,564.92 × 210,672.51
  4. Step 4: Simplify right side
    690,336.72x = 218,165,064,604.90
  5. Step 5: Solve for x
    x = 218,165,064,604.90/690,336.72
  6. Step 6: Final answer
    x = 316,027.03

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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.