Home / 899,234.56-1,240,906.84-491,350.46

Finding the Fourth Proportional to 899,234.56, 1,240,906.84 and 491,350.46

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Solution

The fourth proportional to 899,234.56, 1,240,906.84 and 491,350.46 is: 678,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,234.56 : 1,240,906.84 = 491,350.46 : x
  2. Step 2: Convert to fraction form
    899,234.56/1,240,906.84 = 491,350.46/x
  3. Step 3: Cross multiply
    899,234.56x = 1,240,906.84 × 491,350.46
  4. Step 4: Simplify right side
    899,234.56x = 609,720,139,218.24
  5. Step 5: Solve for x
    x = 609,720,139,218.24/899,234.56
  6. Step 6: Final answer
    x = 678,043.49

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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.