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Finding the Fourth Proportional to 544.93, 812.99 and 479.32

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Solution

The fourth proportional to 544.93, 812.99 and 479.32 is: 715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.93 : 812.99 = 479.32 : x
  2. Step 2: Convert to fraction form
    544.93/812.99 = 479.32/x
  3. Step 3: Cross multiply
    544.93x = 812.99 × 479.32
  4. Step 4: Simplify right side
    544.93x = 389,678.84
  5. Step 5: Solve for x
    x = 389,678.84/544.93
  6. Step 6: Final answer
    x = 715.10

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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.