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Finding the Fourth Proportional to 703.32, 968.76 and 555.63

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Solution

The fourth proportional to 703.32, 968.76 and 555.63 is: 765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.32 : 968.76 = 555.63 : x
  2. Step 2: Convert to fraction form
    703.32/968.76 = 555.63/x
  3. Step 3: Cross multiply
    703.32x = 968.76 × 555.63
  4. Step 4: Simplify right side
    703.32x = 538,272.12
  5. Step 5: Solve for x
    x = 538,272.12/703.32
  6. Step 6: Final answer
    x = 765.33

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Half scale
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Double scale
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1.5x scale

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.