Home / 911,983.59-1,368,676.31-865,154.43

Finding the Fourth Proportional to 911,983.59, 1,368,676.31 and 865,154.43

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Solution

The fourth proportional to 911,983.59, 1,368,676.31 and 865,154.43 is: 1,298,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,983.59 : 1,368,676.31 = 865,154.43 : x
  2. Step 2: Convert to fraction form
    911,983.59/1,368,676.31 = 865,154.43/x
  3. Step 3: Cross multiply
    911,983.59x = 1,368,676.31 × 865,154.43
  4. Step 4: Simplify right side
    911,983.59x = 1,184,116,368,506.78
  5. Step 5: Solve for x
    x = 1,184,116,368,506.78/911,983.59
  6. Step 6: Final answer
    x = 1,298,396.57

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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.