Home / 685,707.50-1,028,628.92-236,369.22

Finding the Fourth Proportional to 685,707.50, 1,028,628.92 and 236,369.22

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Solution

The fourth proportional to 685,707.50, 1,028,628.92 and 236,369.22 is: 354,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,707.50 : 1,028,628.92 = 236,369.22 : x
  2. Step 2: Convert to fraction form
    685,707.50/1,028,628.92 = 236,369.22/x
  3. Step 3: Cross multiply
    685,707.50x = 1,028,628.92 × 236,369.22
  4. Step 4: Simplify right side
    685,707.50x = 243,136,215,489.84
  5. Step 5: Solve for x
    x = 243,136,215,489.84/685,707.50
  6. Step 6: Final answer
    x = 354,577.16

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1.5x scale

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.