Home / 457,026.10-685,733.55-220,246.90

Finding the Fourth Proportional to 457,026.10, 685,733.55 and 220,246.90

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Solution

The fourth proportional to 457,026.10, 685,733.55 and 220,246.90 is: 330,464.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,026.10 : 685,733.55 = 220,246.90 : x
  2. Step 2: Convert to fraction form
    457,026.10/685,733.55 = 220,246.90/x
  3. Step 3: Cross multiply
    457,026.10x = 685,733.55 × 220,246.90
  4. Step 4: Simplify right side
    457,026.10x = 151,030,688,613.50
  5. Step 5: Solve for x
    x = 151,030,688,613.50/457,026.10
  6. Step 6: Final answer
    x = 330,464.03

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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.