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Finding the Fourth Proportional to 703.69, 1,055.64 and 573.38

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Solution

The fourth proportional to 703.69, 1,055.64 and 573.38 is: 860.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.69 : 1,055.64 = 573.38 : x
  2. Step 2: Convert to fraction form
    703.69/1,055.64 = 573.38/x
  3. Step 3: Cross multiply
    703.69x = 1,055.64 × 573.38
  4. Step 4: Simplify right side
    703.69x = 605,283.69
  5. Step 5: Solve for x
    x = 605,283.69/703.69
  6. Step 6: Final answer
    x = 860.16

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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.