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Finding the Fourth Proportional to 703.23, 970.11 and 454.76

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Solution

The fourth proportional to 703.23, 970.11 and 454.76 is: 627.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.23 : 970.11 = 454.76 : x
  2. Step 2: Convert to fraction form
    703.23/970.11 = 454.76/x
  3. Step 3: Cross multiply
    703.23x = 970.11 × 454.76
  4. Step 4: Simplify right side
    703.23x = 441,167.22
  5. Step 5: Solve for x
    x = 441,167.22/703.23
  6. Step 6: Final answer
    x = 627.34

Related Problems

Find fourth proportional to 351.62, 485.06 and 227.38
Half scale
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Double scale
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Similar ratio
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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.