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Finding the Fourth Proportional to 644,480, 966,925.44 and 270,402.56

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Solution

The fourth proportional to 644,480, 966,925.44 and 270,402.56 is: 405,690.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,480 : 966,925.44 = 270,402.56 : x
  2. Step 2: Convert to fraction form
    644,480/966,925.44 = 270,402.56/x
  3. Step 3: Cross multiply
    644,480x = 966,925.44 × 270,402.56
  4. Step 4: Simplify right side
    644,480x = 261,459,114,305.13
  5. Step 5: Solve for x
    x = 261,459,114,305.13/644,480
  6. Step 6: Final answer
    x = 405,690.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.