Home / 783,961.68-1,174,367.75-663,501.72

Finding the Fourth Proportional to 783,961.68, 1,174,367.75 and 663,501.72

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Solution

The fourth proportional to 783,961.68, 1,174,367.75 and 663,501.72 is: 993,919.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,961.68 : 1,174,367.75 = 663,501.72 : x
  2. Step 2: Convert to fraction form
    783,961.68/1,174,367.75 = 663,501.72/x
  3. Step 3: Cross multiply
    783,961.68x = 1,174,367.75 × 663,501.72
  4. Step 4: Simplify right side
    783,961.68x = 779,195,018,720.02
  5. Step 5: Solve for x
    x = 779,195,018,720.02/783,961.68
  6. Step 6: Final answer
    x = 993,919.78

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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.