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Finding the Fourth Proportional to 531,211.67, 733,050.73 and 289,489.01

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Solution

The fourth proportional to 531,211.67, 733,050.73 and 289,489.01 is: 399,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,211.67 : 733,050.73 = 289,489.01 : x
  2. Step 2: Convert to fraction form
    531,211.67/733,050.73 = 289,489.01/x
  3. Step 3: Cross multiply
    531,211.67x = 733,050.73 × 289,489.01
  4. Step 4: Simplify right side
    531,211.67x = 212,210,133,803.39
  5. Step 5: Solve for x
    x = 212,210,133,803.39/531,211.67
  6. Step 6: Final answer
    x = 399,483.19

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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.