Home / 699,893.11-1,051,104.35-643,629.43

Finding the Fourth Proportional to 699,893.11, 1,051,104.35 and 643,629.43

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Solution

The fourth proportional to 699,893.11, 1,051,104.35 and 643,629.43 is: 966,607.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,893.11 : 1,051,104.35 = 643,629.43 : x
  2. Step 2: Convert to fraction form
    699,893.11/1,051,104.35 = 643,629.43/x
  3. Step 3: Cross multiply
    699,893.11x = 1,051,104.35 × 643,629.43
  4. Step 4: Simplify right side
    699,893.11x = 676,521,693,661.02
  5. Step 5: Solve for x
    x = 676,521,693,661.02/699,893.11
  6. Step 6: Final answer
    x = 966,607.16

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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.