Home / 685,281.70-1,027,962.90-264,559.78

Finding the Fourth Proportional to 685,281.70, 1,027,962.90 and 264,559.78

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Solution

The fourth proportional to 685,281.70, 1,027,962.90 and 264,559.78 is: 396,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,281.70 : 1,027,962.90 = 264,559.78 : x
  2. Step 2: Convert to fraction form
    685,281.70/1,027,962.90 = 264,559.78/x
  3. Step 3: Cross multiply
    685,281.70x = 1,027,962.90 × 264,559.78
  4. Step 4: Simplify right side
    685,281.70x = 271,957,638,672.16
  5. Step 5: Solve for x
    x = 271,957,638,672.16/685,281.70
  6. Step 6: Final answer
    x = 396,855.25

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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.