Home / 685,553.65-1,028,426.24-286,102.96

Finding the Fourth Proportional to 685,553.65, 1,028,426.24 and 286,102.96

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Solution

The fourth proportional to 685,553.65, 1,028,426.24 and 286,102.96 is: 429,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,553.65 : 1,028,426.24 = 286,102.96 : x
  2. Step 2: Convert to fraction form
    685,553.65/1,028,426.24 = 286,102.96/x
  3. Step 3: Cross multiply
    685,553.65x = 1,028,426.24 × 286,102.96
  4. Step 4: Simplify right side
    685,553.65x = 294,235,784,833.02
  5. Step 5: Solve for x
    x = 294,235,784,833.02/685,553.65
  6. Step 6: Final answer
    x = 429,194.40

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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.