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Finding the Fourth Proportional to 324,378.40, 486,567.60 and 306,007.60

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Solution

The fourth proportional to 324,378.40, 486,567.60 and 306,007.60 is: 459,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,378.40 : 486,567.60 = 306,007.60 : x
  2. Step 2: Convert to fraction form
    324,378.40/486,567.60 = 306,007.60/x
  3. Step 3: Cross multiply
    324,378.40x = 486,567.60 × 306,007.60
  4. Step 4: Simplify right side
    324,378.40x = 148,893,383,513.76
  5. Step 5: Solve for x
    x = 148,893,383,513.76/324,378.40
  6. Step 6: Final answer
    x = 459,011.40

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1.5x scale

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.