Home / 719,022.80-1,078,015.80-403,576.40

Finding the Fourth Proportional to 719,022.80, 1,078,015.80 and 403,576.40

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Solution

The fourth proportional to 719,022.80, 1,078,015.80 and 403,576.40 is: 605,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,022.80 : 1,078,015.80 = 403,576.40 : x
  2. Step 2: Convert to fraction form
    719,022.80/1,078,015.80 = 403,576.40/x
  3. Step 3: Cross multiply
    719,022.80x = 1,078,015.80 × 403,576.40
  4. Step 4: Simplify right side
    719,022.80x = 435,061,735,707.12
  5. Step 5: Solve for x
    x = 435,061,735,707.12/719,022.80
  6. Step 6: Final answer
    x = 605,073.63

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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.