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Finding the Fourth Proportional to 494,510.76, 682,462.50 and 279,655.08

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Solution

The fourth proportional to 494,510.76, 682,462.50 and 279,655.08 is: 385,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,510.76 : 682,462.50 = 279,655.08 : x
  2. Step 2: Convert to fraction form
    494,510.76/682,462.50 = 279,655.08/x
  3. Step 3: Cross multiply
    494,510.76x = 682,462.50 × 279,655.08
  4. Step 4: Simplify right side
    494,510.76x = 190,854,105,034.50
  5. Step 5: Solve for x
    x = 190,854,105,034.50/494,510.76
  6. Step 6: Final answer
    x = 385,945.30

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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.