Home / 531,410.73-733,319.64-289,669.47

Finding the Fourth Proportional to 531,410.73, 733,319.64 and 289,669.47

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Solution

The fourth proportional to 531,410.73, 733,319.64 and 289,669.47 is: 399,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,410.73 : 733,319.64 = 289,669.47 : x
  2. Step 2: Convert to fraction form
    531,410.73/733,319.64 = 289,669.47/x
  3. Step 3: Cross multiply
    531,410.73x = 733,319.64 × 289,669.47
  4. Step 4: Simplify right side
    531,410.73x = 212,420,311,459.39
  5. Step 5: Solve for x
    x = 212,420,311,459.39/531,410.73
  6. Step 6: Final answer
    x = 399,729.06

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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.