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Finding the Fourth Proportional to 452,480.68, 678,710.64 and 227,780.78

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Solution

The fourth proportional to 452,480.68, 678,710.64 and 227,780.78 is: 341,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,480.68 : 678,710.64 = 227,780.78 : x
  2. Step 2: Convert to fraction form
    452,480.68/678,710.64 = 227,780.78/x
  3. Step 3: Cross multiply
    452,480.68x = 678,710.64 × 227,780.78
  4. Step 4: Simplify right side
    452,480.68x = 154,597,236,434.12
  5. Step 5: Solve for x
    x = 154,597,236,434.12/452,480.68
  6. Step 6: Final answer
    x = 341,665.94

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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.