Home / 1,111,640.81-1,534,142.18-628,250.63

Finding the Fourth Proportional to 1,111,640.81, 1,534,142.18 and 628,250.63

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Solution

The fourth proportional to 1,111,640.81, 1,534,142.18 and 628,250.63 is: 867,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,640.81 : 1,534,142.18 = 628,250.63 : x
  2. Step 2: Convert to fraction form
    1,111,640.81/1,534,142.18 = 628,250.63/x
  3. Step 3: Cross multiply
    1,111,640.81x = 1,534,142.18 × 628,250.63
  4. Step 4: Simplify right side
    1,111,640.81x = 963,825,787,953.32
  5. Step 5: Solve for x
    x = 963,825,787,953.32/1,111,640.81
  6. Step 6: Final answer
    x = 867,029.87

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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.