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Finding the Fourth Proportional to 450,313.74, 676,243.36 and 399,826.86

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Solution

The fourth proportional to 450,313.74, 676,243.36 and 399,826.86 is: 600,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,313.74 : 676,243.36 = 399,826.86 : x
  2. Step 2: Convert to fraction form
    450,313.74/676,243.36 = 399,826.86/x
  3. Step 3: Cross multiply
    450,313.74x = 676,243.36 × 399,826.86
  4. Step 4: Simplify right side
    450,313.74x = 270,380,259,224.65
  5. Step 5: Solve for x
    x = 270,380,259,224.65/450,313.74
  6. Step 6: Final answer
    x = 600,426.40

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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.