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Finding the Fourth Proportional to 531,205.37, 733,042.07 and 289,482.74

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Solution

The fourth proportional to 531,205.37, 733,042.07 and 289,482.74 is: 399,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,205.37 : 733,042.07 = 289,482.74 : x
  2. Step 2: Convert to fraction form
    531,205.37/733,042.07 = 289,482.74/x
  3. Step 3: Cross multiply
    531,205.37x = 733,042.07 × 289,482.74
  4. Step 4: Simplify right side
    531,205.37x = 212,203,021,846.25
  5. Step 5: Solve for x
    x = 212,203,021,846.25/531,205.37
  6. Step 6: Final answer
    x = 399,474.55

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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.