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Finding the Fourth Proportional to 531,363.66, 733,272.39 and 289,648.32

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Solution

The fourth proportional to 531,363.66, 733,272.39 and 289,648.32 is: 399,709.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,363.66 : 733,272.39 = 289,648.32 : x
  2. Step 2: Convert to fraction form
    531,363.66/733,272.39 = 289,648.32/x
  3. Step 3: Cross multiply
    531,363.66x = 733,272.39 × 289,648.32
  4. Step 4: Simplify right side
    531,363.66x = 212,391,115,865.89
  5. Step 5: Solve for x
    x = 212,391,115,865.89/531,363.66
  6. Step 6: Final answer
    x = 399,709.52

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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.