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Finding the Fourth Proportional to 531,521.64, 733,486.32 and 289,804.68

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Solution

The fourth proportional to 531,521.64, 733,486.32 and 289,804.68 is: 399,923.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,521.64 : 733,486.32 = 289,804.68 : x
  2. Step 2: Convert to fraction form
    531,521.64/733,486.32 = 289,804.68/x
  3. Step 3: Cross multiply
    531,521.64x = 733,486.32 × 289,804.68
  4. Step 4: Simplify right side
    531,521.64x = 212,567,768,251.98
  5. Step 5: Solve for x
    x = 212,567,768,251.98/531,521.64
  6. Step 6: Final answer
    x = 399,923.07

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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.