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Finding the Fourth Proportional to 531,089.84, 732,894.72 and 289,374.41

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Solution

The fourth proportional to 531,089.84, 732,894.72 and 289,374.41 is: 399,331.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,089.84 : 732,894.72 = 289,374.41 : x
  2. Step 2: Convert to fraction form
    531,089.84/732,894.72 = 289,374.41/x
  3. Step 3: Cross multiply
    531,089.84x = 732,894.72 × 289,374.41
  4. Step 4: Simplify right side
    531,089.84x = 212,080,973,527.64
  5. Step 5: Solve for x
    x = 212,080,973,527.64/531,089.84
  6. Step 6: Final answer
    x = 399,331.64

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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.