Home / 289,451.12-433,651.78-283,152.56

Finding the Fourth Proportional to 289,451.12, 433,651.78 and 283,152.56

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Solution

The fourth proportional to 289,451.12, 433,651.78 and 283,152.56 is: 424,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,451.12 : 433,651.78 = 283,152.56 : x
  2. Step 2: Convert to fraction form
    289,451.12/433,651.78 = 283,152.56/x
  3. Step 3: Cross multiply
    289,451.12x = 433,651.78 × 283,152.56
  4. Step 4: Simplify right side
    289,451.12x = 122,789,611,655.56
  5. Step 5: Solve for x
    x = 122,789,611,655.56/289,451.12
  6. Step 6: Final answer
    x = 424,215.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.