Home / 699,118.40-1,048,013.20-445,687.63

Finding the Fourth Proportional to 699,118.40, 1,048,013.20 and 445,687.63

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Solution

The fourth proportional to 699,118.40, 1,048,013.20 and 445,687.63 is: 668,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,118.40 : 1,048,013.20 = 445,687.63 : x
  2. Step 2: Convert to fraction form
    699,118.40/1,048,013.20 = 445,687.63/x
  3. Step 3: Cross multiply
    699,118.40x = 1,048,013.20 × 445,687.63
  4. Step 4: Simplify right side
    699,118.40x = 467,086,517,253.79
  5. Step 5: Solve for x
    x = 467,086,517,253.79/699,118.40
  6. Step 6: Final answer
    x = 668,107.88

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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.