Home / 1,405,863.90-1,940,101.38-761,284.13

Finding the Fourth Proportional to 1,405,863.90, 1,940,101.38 and 761,284.13

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Solution

The fourth proportional to 1,405,863.90, 1,940,101.38 and 761,284.13 is: 1,050,577.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,863.90 : 1,940,101.38 = 761,284.13 : x
  2. Step 2: Convert to fraction form
    1,405,863.90/1,940,101.38 = 761,284.13/x
  3. Step 3: Cross multiply
    1,405,863.90x = 1,940,101.38 × 761,284.13
  4. Step 4: Simplify right side
    1,405,863.90x = 1,476,968,381,484.59
  5. Step 5: Solve for x
    x = 1,476,968,381,484.59/1,405,863.90
  6. Step 6: Final answer
    x = 1,050,577.07

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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.