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Finding the Fourth Proportional to 531,035.04, 732,833.86 and 289,317.55

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Solution

The fourth proportional to 531,035.04, 732,833.86 and 289,317.55 is: 399,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,035.04 : 732,833.86 = 289,317.55 : x
  2. Step 2: Convert to fraction form
    531,035.04/732,833.86 = 289,317.55/x
  3. Step 3: Cross multiply
    531,035.04x = 732,833.86 × 289,317.55
  4. Step 4: Simplify right side
    531,035.04x = 212,021,693,418.60
  5. Step 5: Solve for x
    x = 212,021,693,418.60/531,035.04
  6. Step 6: Final answer
    x = 399,261.21

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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.