Home / 699,892.11-1,051,102.85-643,628.43

Finding the Fourth Proportional to 699,892.11, 1,051,102.85 and 643,628.43

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Solution

The fourth proportional to 699,892.11, 1,051,102.85 and 643,628.43 is: 966,605.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,892.11 : 1,051,102.85 = 643,628.43 : x
  2. Step 2: Convert to fraction form
    699,892.11/1,051,102.85 = 643,628.43/x
  3. Step 3: Cross multiply
    699,892.11x = 1,051,102.85 × 643,628.43
  4. Step 4: Simplify right side
    699,892.11x = 676,519,673,895.88
  5. Step 5: Solve for x
    x = 676,519,673,895.88/699,892.11
  6. Step 6: Final answer
    x = 966,605.66

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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.