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Finding the Fourth Proportional to 491.47, 733.05 and 462.92

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Solution

The fourth proportional to 491.47, 733.05 and 462.92 is: 690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.47 : 733.05 = 462.92 : x
  2. Step 2: Convert to fraction form
    491.47/733.05 = 462.92/x
  3. Step 3: Cross multiply
    491.47x = 733.05 × 462.92
  4. Step 4: Simplify right side
    491.47x = 339,339.84
  5. Step 5: Solve for x
    x = 339,339.84/491.47
  6. Step 6: Final answer
    x = 690.46

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.