Home / 685,712.28-1,028,636.04-236,374.00

Finding the Fourth Proportional to 685,712.28, 1,028,636.04 and 236,374.00

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Solution

The fourth proportional to 685,712.28, 1,028,636.04 and 236,374.00 is: 354,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,712.28 : 1,028,636.04 = 236,374.00 : x
  2. Step 2: Convert to fraction form
    685,712.28/1,028,636.04 = 236,374.00/x
  3. Step 3: Cross multiply
    685,712.28x = 1,028,636.04 × 236,374.00
  4. Step 4: Simplify right side
    685,712.28x = 243,142,813,633.77
  5. Step 5: Solve for x
    x = 243,142,813,633.77/685,712.28
  6. Step 6: Final answer
    x = 354,584.31

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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.