Home / 718,577.10-1,077,920.31-419,087.49

Finding the Fourth Proportional to 718,577.10, 1,077,920.31 and 419,087.49

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Solution

The fourth proportional to 718,577.10, 1,077,920.31 and 419,087.49 is: 628,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,577.10 : 1,077,920.31 = 419,087.49 : x
  2. Step 2: Convert to fraction form
    718,577.10/1,077,920.31 = 419,087.49/x
  3. Step 3: Cross multiply
    718,577.10x = 1,077,920.31 × 419,087.49
  4. Step 4: Simplify right side
    718,577.10x = 451,742,917,137.92
  5. Step 5: Solve for x
    x = 451,742,917,137.92/718,577.10
  6. Step 6: Final answer
    x = 628,663.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.