Home / 685,710.79-1,028,633.82-236,372.51

Finding the Fourth Proportional to 685,710.79, 1,028,633.82 and 236,372.51

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Solution

The fourth proportional to 685,710.79, 1,028,633.82 and 236,372.51 is: 354,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,710.79 : 1,028,633.82 = 236,372.51 : x
  2. Step 2: Convert to fraction form
    685,710.79/1,028,633.82 = 236,372.51/x
  3. Step 3: Cross multiply
    685,710.79x = 1,028,633.82 × 236,372.51
  4. Step 4: Simplify right side
    685,710.79x = 243,140,757,904.29
  5. Step 5: Solve for x
    x = 243,140,757,904.29/685,710.79
  6. Step 6: Final answer
    x = 354,582.08

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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.