Home / 778,642.04-1,074,551.82-451,930.60

Finding the Fourth Proportional to 778,642.04, 1,074,551.82 and 451,930.60

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Solution

The fourth proportional to 778,642.04, 1,074,551.82 and 451,930.60 is: 623,679.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,642.04 : 1,074,551.82 = 451,930.60 : x
  2. Step 2: Convert to fraction form
    778,642.04/1,074,551.82 = 451,930.60/x
  3. Step 3: Cross multiply
    778,642.04x = 1,074,551.82 × 451,930.60
  4. Step 4: Simplify right side
    778,642.04x = 485,622,848,743.69
  5. Step 5: Solve for x
    x = 485,622,848,743.69/778,642.04
  6. Step 6: Final answer
    x = 623,679.21

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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.