Home / 1,398,074.60-1,929,324.60-786,227.16

Finding the Fourth Proportional to 1,398,074.60, 1,929,324.60 and 786,227.16

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Solution

The fourth proportional to 1,398,074.60, 1,929,324.60 and 786,227.16 is: 1,084,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,074.60 : 1,929,324.60 = 786,227.16 : x
  2. Step 2: Convert to fraction form
    1,398,074.60/1,929,324.60 = 786,227.16/x
  3. Step 3: Cross multiply
    1,398,074.60x = 1,929,324.60 × 786,227.16
  4. Step 4: Simplify right side
    1,398,074.60x = 1,516,887,400,976.14
  5. Step 5: Solve for x
    x = 1,516,887,400,976.14/1,398,074.60
  6. Step 6: Final answer
    x = 1,084,983.17

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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.