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Finding the Fourth Proportional to 400,714.42, 552,992.70 and 219,423.46

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Solution

The fourth proportional to 400,714.42, 552,992.70 and 219,423.46 is: 302,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,714.42 : 552,992.70 = 219,423.46 : x
  2. Step 2: Convert to fraction form
    400,714.42/552,992.70 = 219,423.46/x
  3. Step 3: Cross multiply
    400,714.42x = 552,992.70 × 219,423.46
  4. Step 4: Simplify right side
    400,714.42x = 121,339,571,588.74
  5. Step 5: Solve for x
    x = 121,339,571,588.74/400,714.42
  6. Step 6: Final answer
    x = 302,808.10

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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.