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Finding the Fourth Proportional to 507.02, 757.23 and 479.07

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Solution

The fourth proportional to 507.02, 757.23 and 479.07 is: 715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.02 : 757.23 = 479.07 : x
  2. Step 2: Convert to fraction form
    507.02/757.23 = 479.07/x
  3. Step 3: Cross multiply
    507.02x = 757.23 × 479.07
  4. Step 4: Simplify right side
    507.02x = 362,764.38
  5. Step 5: Solve for x
    x = 362,764.38/507.02
  6. Step 6: Final answer
    x = 715.49

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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.