Home / 531,255.31-733,110.98-289,532.70

Finding the Fourth Proportional to 531,255.31, 733,110.98 and 289,532.70

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Solution

The fourth proportional to 531,255.31, 733,110.98 and 289,532.70 is: 399,543.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,255.31 : 733,110.98 = 289,532.70 : x
  2. Step 2: Convert to fraction form
    531,255.31/733,110.98 = 289,532.70/x
  3. Step 3: Cross multiply
    531,255.31x = 733,110.98 × 289,532.70
  4. Step 4: Simplify right side
    531,255.31x = 212,259,601,439.05
  5. Step 5: Solve for x
    x = 212,259,601,439.05/531,255.31
  6. Step 6: Final answer
    x = 399,543.50

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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.