Home / 762,698.28-1,052,520.72-418,539.90

Finding the Fourth Proportional to 762,698.28, 1,052,520.72 and 418,539.90

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Solution

The fourth proportional to 762,698.28, 1,052,520.72 and 418,539.90 is: 577,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,698.28 : 1,052,520.72 = 418,539.90 : x
  2. Step 2: Convert to fraction form
    762,698.28/1,052,520.72 = 418,539.90/x
  3. Step 3: Cross multiply
    762,698.28x = 1,052,520.72 × 418,539.90
  4. Step 4: Simplify right side
    762,698.28x = 440,521,916,896.73
  5. Step 5: Solve for x
    x = 440,521,916,896.73/762,698.28
  6. Step 6: Final answer
    x = 577,583.47

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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.