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Finding the Fourth Proportional to 453,905.71, 680,858.75 and 453,249.79

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Solution

The fourth proportional to 453,905.71, 680,858.75 and 453,249.79 is: 679,874.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,905.71 : 680,858.75 = 453,249.79 : x
  2. Step 2: Convert to fraction form
    453,905.71/680,858.75 = 453,249.79/x
  3. Step 3: Cross multiply
    453,905.71x = 680,858.75 × 453,249.79
  4. Step 4: Simplify right side
    453,905.71x = 308,599,085,457.16
  5. Step 5: Solve for x
    x = 308,599,085,457.16/453,905.71
  6. Step 6: Final answer
    x = 679,874.87

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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.