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Finding the Fourth Proportional to 531,090.96, 732,896.28 and 289,375.52

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Solution

The fourth proportional to 531,090.96, 732,896.28 and 289,375.52 is: 399,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,090.96 : 732,896.28 = 289,375.52 : x
  2. Step 2: Convert to fraction form
    531,090.96/732,896.28 = 289,375.52/x
  3. Step 3: Cross multiply
    531,090.96x = 732,896.28 × 289,375.52
  4. Step 4: Simplify right side
    531,090.96x = 212,082,242,131.07
  5. Step 5: Solve for x
    x = 212,082,242,131.07/531,090.96
  6. Step 6: Final answer
    x = 399,333.18

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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.