Home / 1,398,028.67-1,929,054.50-786,144.95

Finding the Fourth Proportional to 1,398,028.67, 1,929,054.50 and 786,144.95

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Solution

The fourth proportional to 1,398,028.67, 1,929,054.50 and 786,144.95 is: 1,084,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,028.67 : 1,929,054.50 = 786,144.95 : x
  2. Step 2: Convert to fraction form
    1,398,028.67/1,929,054.50 = 786,144.95/x
  3. Step 3: Cross multiply
    1,398,028.67x = 1,929,054.50 × 786,144.95
  4. Step 4: Simplify right side
    1,398,028.67x = 1,516,516,449,519.05
  5. Step 5: Solve for x
    x = 1,516,516,449,519.05/1,398,028.67
  6. Step 6: Final answer
    x = 1,084,753.47

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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.