Home / 428,698.10-591,630.94-247,417.68

Finding the Fourth Proportional to 428,698.10, 591,630.94 and 247,417.68

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Solution

The fourth proportional to 428,698.10, 591,630.94 and 247,417.68 is: 341,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,698.10 : 591,630.94 = 247,417.68 : x
  2. Step 2: Convert to fraction form
    428,698.10/591,630.94 = 247,417.68/x
  3. Step 3: Cross multiply
    428,698.10x = 591,630.94 × 247,417.68
  4. Step 4: Simplify right side
    428,698.10x = 146,379,954,591.02
  5. Step 5: Solve for x
    x = 146,379,954,591.02/428,698.10
  6. Step 6: Final answer
    x = 341,452.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.