Home / 685,585.35-1,028,473.61-286,134.66

Finding the Fourth Proportional to 685,585.35, 1,028,473.61 and 286,134.66

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Solution

The fourth proportional to 685,585.35, 1,028,473.61 and 286,134.66 is: 429,241.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,585.35 : 1,028,473.61 = 286,134.66 : x
  2. Step 2: Convert to fraction form
    685,585.35/1,028,473.61 = 286,134.66/x
  3. Step 3: Cross multiply
    685,585.35x = 1,028,473.61 × 286,134.66
  4. Step 4: Simplify right side
    685,585.35x = 294,281,945,285.65
  5. Step 5: Solve for x
    x = 294,281,945,285.65/685,585.35
  6. Step 6: Final answer
    x = 429,241.88

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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.