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Finding the Fourth Proportional to 700.60, 969.12 and 653.32

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Solution

The fourth proportional to 700.60, 969.12 and 653.32 is: 903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.60 : 969.12 = 653.32 : x
  2. Step 2: Convert to fraction form
    700.60/969.12 = 653.32/x
  3. Step 3: Cross multiply
    700.60x = 969.12 × 653.32
  4. Step 4: Simplify right side
    700.60x = 633,145.48
  5. Step 5: Solve for x
    x = 633,145.48/700.60
  6. Step 6: Final answer
    x = 903.72

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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.