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Finding the Fourth Proportional to 531,170.40, 733,006.04 and 289,455.06

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Solution

The fourth proportional to 531,170.40, 733,006.04 and 289,455.06 is: 399,443.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,170.40 : 733,006.04 = 289,455.06 : x
  2. Step 2: Convert to fraction form
    531,170.40/733,006.04 = 289,455.06/x
  3. Step 3: Cross multiply
    531,170.40x = 733,006.04 × 289,455.06
  4. Step 4: Simplify right side
    531,170.40x = 212,172,307,288.56
  5. Step 5: Solve for x
    x = 212,172,307,288.56/531,170.40
  6. Step 6: Final answer
    x = 399,443.02

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1.5x scale

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.