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Finding the Fourth Proportional to 707.46, 975.64 and 567.60

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Solution

The fourth proportional to 707.46, 975.64 and 567.60 is: 782.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.46 : 975.64 = 567.60 : x
  2. Step 2: Convert to fraction form
    707.46/975.64 = 567.60/x
  3. Step 3: Cross multiply
    707.46x = 975.64 × 567.60
  4. Step 4: Simplify right side
    707.46x = 553,773.26
  5. Step 5: Solve for x
    x = 553,773.26/707.46
  6. Step 6: Final answer
    x = 782.76

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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.