Home / 685,189.48-1,027,528.86-235,784.68

Finding the Fourth Proportional to 685,189.48, 1,027,528.86 and 235,784.68

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Solution

The fourth proportional to 685,189.48, 1,027,528.86 and 235,784.68 is: 353,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,189.48 : 1,027,528.86 = 235,784.68 : x
  2. Step 2: Convert to fraction form
    685,189.48/1,027,528.86 = 235,784.68/x
  3. Step 3: Cross multiply
    685,189.48x = 1,027,528.86 × 235,784.68
  4. Step 4: Simplify right side
    685,189.48x = 242,275,563,445.87
  5. Step 5: Solve for x
    x = 242,275,563,445.87/685,189.48
  6. Step 6: Final answer
    x = 353,589.15

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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.