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Finding the Fourth Proportional to 525.85, 724.83 and 463.28

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Solution

The fourth proportional to 525.85, 724.83 and 463.28 is: 638.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.85 : 724.83 = 463.28 : x
  2. Step 2: Convert to fraction form
    525.85/724.83 = 463.28/x
  3. Step 3: Cross multiply
    525.85x = 724.83 × 463.28
  4. Step 4: Simplify right side
    525.85x = 335,799.24
  5. Step 5: Solve for x
    x = 335,799.24/525.85
  6. Step 6: Final answer
    x = 638.58

Related Problems

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Half scale
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Double scale
Find fourth proportional to 526.85, 726.21 and 464.28
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.