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Finding the Fourth Proportional to 578,213.61, 797,922.12 and 316,568.37

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Solution

The fourth proportional to 578,213.61, 797,922.12 and 316,568.37 is: 436,857.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,213.61 : 797,922.12 = 316,568.37 : x
  2. Step 2: Convert to fraction form
    578,213.61/797,922.12 = 316,568.37/x
  3. Step 3: Cross multiply
    578,213.61x = 797,922.12 × 316,568.37
  4. Step 4: Simplify right side
    578,213.61x = 252,596,900,925.73
  5. Step 5: Solve for x
    x = 252,596,900,925.73/578,213.61
  6. Step 6: Final answer
    x = 436,857.42

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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.