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Finding the Fourth Proportional to 846.57, 1,168.05 and 515.01

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Solution

The fourth proportional to 846.57, 1,168.05 and 515.01 is: 710.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    846.57 : 1,168.05 = 515.01 : x
  2. Step 2: Convert to fraction form
    846.57/1,168.05 = 515.01/x
  3. Step 3: Cross multiply
    846.57x = 1,168.05 × 515.01
  4. Step 4: Simplify right side
    846.57x = 601,557.43
  5. Step 5: Solve for x
    x = 601,557.43/846.57
  6. Step 6: Final answer
    x = 710.58

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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.