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Finding the Fourth Proportional to 504.76, 697.27 and 480.46

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Solution

The fourth proportional to 504.76, 697.27 and 480.46 is: 663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.76 : 697.27 = 480.46 : x
  2. Step 2: Convert to fraction form
    504.76/697.27 = 480.46/x
  3. Step 3: Cross multiply
    504.76x = 697.27 × 480.46
  4. Step 4: Simplify right side
    504.76x = 335,010.34
  5. Step 5: Solve for x
    x = 335,010.34/504.76
  6. Step 6: Final answer
    x = 663.70

Related Problems

Find fourth proportional to 252.38, 348.64 and 240.23
Half scale
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Double scale
Find fourth proportional to 505.76, 698.65 and 481.46
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.