Home / 762,619.59-1,052,414.64-418,457.75

Finding the Fourth Proportional to 762,619.59, 1,052,414.64 and 418,457.75

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Solution

The fourth proportional to 762,619.59, 1,052,414.64 and 418,457.75 is: 577,471.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,619.59 : 1,052,414.64 = 418,457.75 : x
  2. Step 2: Convert to fraction form
    762,619.59/1,052,414.64 = 418,457.75/x
  3. Step 3: Cross multiply
    762,619.59x = 1,052,414.64 × 418,457.75
  4. Step 4: Simplify right side
    762,619.59x = 440,391,057,059.39
  5. Step 5: Solve for x
    x = 440,391,057,059.39/762,619.59
  6. Step 6: Final answer
    x = 577,471.47

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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.