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Finding the Fourth Proportional to 975.83, 1,464.01 and 564.21

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Solution

The fourth proportional to 975.83, 1,464.01 and 564.21 is: 846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    975.83 : 1,464.01 = 564.21 : x
  2. Step 2: Convert to fraction form
    975.83/1,464.01 = 564.21/x
  3. Step 3: Cross multiply
    975.83x = 1,464.01 × 564.21
  4. Step 4: Simplify right side
    975.83x = 826,007.67
  5. Step 5: Solve for x
    x = 826,007.67/975.83
  6. Step 6: Final answer
    x = 846.47

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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.