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Finding the Fourth Proportional to 493.45, 740.02 and 435.73

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Solution

The fourth proportional to 493.45, 740.02 and 435.73 is: 653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.45 : 740.02 = 435.73 : x
  2. Step 2: Convert to fraction form
    493.45/740.02 = 435.73/x
  3. Step 3: Cross multiply
    493.45x = 740.02 × 435.73
  4. Step 4: Simplify right side
    493.45x = 322,448.91
  5. Step 5: Solve for x
    x = 322,448.91/493.45
  6. Step 6: Final answer
    x = 653.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.