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Finding the Fourth Proportional to 487.42, 673.59 and 433.42

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Solution

The fourth proportional to 487.42, 673.59 and 433.42 is: 598.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.42 : 673.59 = 433.42 : x
  2. Step 2: Convert to fraction form
    487.42/673.59 = 433.42/x
  3. Step 3: Cross multiply
    487.42x = 673.59 × 433.42
  4. Step 4: Simplify right side
    487.42x = 291,947.38
  5. Step 5: Solve for x
    x = 291,947.38/487.42
  6. Step 6: Final answer
    x = 598.96

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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.