Home / 1,383,278.36-1,909,078.62-810,802.76

Finding the Fourth Proportional to 1,383,278.36, 1,909,078.62 and 810,802.76

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Solution

The fourth proportional to 1,383,278.36, 1,909,078.62 and 810,802.76 is: 1,118,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,278.36 : 1,909,078.62 = 810,802.76 : x
  2. Step 2: Convert to fraction form
    1,383,278.36/1,909,078.62 = 810,802.76/x
  3. Step 3: Cross multiply
    1,383,278.36x = 1,909,078.62 × 810,802.76
  4. Step 4: Simplify right side
    1,383,278.36x = 1,547,886,214,152.99
  5. Step 5: Solve for x
    x = 1,547,886,214,152.99/1,383,278.36
  6. Step 6: Final answer
    x = 1,118,998.36

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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.