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Finding the Fourth Proportional to 603.48, 832.23 and 404.76

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Solution

The fourth proportional to 603.48, 832.23 and 404.76 is: 558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.48 : 832.23 = 404.76 : x
  2. Step 2: Convert to fraction form
    603.48/832.23 = 404.76/x
  3. Step 3: Cross multiply
    603.48x = 832.23 × 404.76
  4. Step 4: Simplify right side
    603.48x = 336,853.41
  5. Step 5: Solve for x
    x = 336,853.41/603.48
  6. Step 6: Final answer
    x = 558.18

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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.