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Finding the Fourth Proportional to 651.56, 897.64 and 454.76

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Solution

The fourth proportional to 651.56, 897.64 and 454.76 is: 626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.56 : 897.64 = 454.76 : x
  2. Step 2: Convert to fraction form
    651.56/897.64 = 454.76/x
  3. Step 3: Cross multiply
    651.56x = 897.64 × 454.76
  4. Step 4: Simplify right side
    651.56x = 408,210.77
  5. Step 5: Solve for x
    x = 408,210.77/651.56
  6. Step 6: Final answer
    x = 626.51

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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.