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Finding the Fourth Proportional to 525.24, 723.18 and 446.40

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Solution

The fourth proportional to 525.24, 723.18 and 446.40 is: 614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.24 : 723.18 = 446.40 : x
  2. Step 2: Convert to fraction form
    525.24/723.18 = 446.40/x
  3. Step 3: Cross multiply
    525.24x = 723.18 × 446.40
  4. Step 4: Simplify right side
    525.24x = 322,827.55
  5. Step 5: Solve for x
    x = 322,827.55/525.24
  6. Step 6: Final answer
    x = 614.63

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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.