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Finding the Fourth Proportional to 477.48, 719.68 and 451.02

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Solution

The fourth proportional to 477.48, 719.68 and 451.02 is: 679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.48 : 719.68 = 451.02 : x
  2. Step 2: Convert to fraction form
    477.48/719.68 = 451.02/x
  3. Step 3: Cross multiply
    477.48x = 719.68 × 451.02
  4. Step 4: Simplify right side
    477.48x = 324,590.07
  5. Step 5: Solve for x
    x = 324,590.07/477.48
  6. Step 6: Final answer
    x = 679.80

Related Problems

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.