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Finding the Fourth Proportional to 940.64, 1,297.68 and 567.52

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Solution

The fourth proportional to 940.64, 1,297.68 and 567.52 is: 782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.64 : 1,297.68 = 567.52 : x
  2. Step 2: Convert to fraction form
    940.64/1,297.68 = 567.52/x
  3. Step 3: Cross multiply
    940.64x = 1,297.68 × 567.52
  4. Step 4: Simplify right side
    940.64x = 736,459.35
  5. Step 5: Solve for x
    x = 736,459.35/940.64
  6. Step 6: Final answer
    x = 782.93

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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.