Home / 1,156,368.21-1,595,768.82-640,111.19

Finding the Fourth Proportional to 1,156,368.21, 1,595,768.82 and 640,111.19

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Solution

The fourth proportional to 1,156,368.21, 1,595,768.82 and 640,111.19 is: 883,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,368.21 : 1,595,768.82 = 640,111.19 : x
  2. Step 2: Convert to fraction form
    1,156,368.21/1,595,768.82 = 640,111.19/x
  3. Step 3: Cross multiply
    1,156,368.21x = 1,595,768.82 × 640,111.19
  4. Step 4: Simplify right side
    1,156,368.21x = 1,021,469,470,356.25
  5. Step 5: Solve for x
    x = 1,021,469,470,356.25/1,156,368.21
  6. Step 6: Final answer
    x = 883,342.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.