Home / 531,635.28-733,656.12-289,918.32

Finding the Fourth Proportional to 531,635.28, 733,656.12 and 289,918.32

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Solution

The fourth proportional to 531,635.28, 733,656.12 and 289,918.32 is: 400,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,635.28 : 733,656.12 = 289,918.32 : x
  2. Step 2: Convert to fraction form
    531,635.28/733,656.12 = 289,918.32/x
  3. Step 3: Cross multiply
    531,635.28x = 733,656.12 × 289,918.32
  4. Step 4: Simplify right side
    531,635.28x = 212,700,349,768.12
  5. Step 5: Solve for x
    x = 212,700,349,768.12/531,635.28
  6. Step 6: Final answer
    x = 400,086.97

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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.