Home / 452,380.46-678,371.36-212,562.59

Finding the Fourth Proportional to 452,380.46, 678,371.36 and 212,562.59

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Solution

The fourth proportional to 452,380.46, 678,371.36 and 212,562.59 is: 318,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,380.46 : 678,371.36 = 212,562.59 : x
  2. Step 2: Convert to fraction form
    452,380.46/678,371.36 = 212,562.59/x
  3. Step 3: Cross multiply
    452,380.46x = 678,371.36 × 212,562.59
  4. Step 4: Simplify right side
    452,380.46x = 144,196,368,808.75
  5. Step 5: Solve for x
    x = 144,196,368,808.75/452,380.46
  6. Step 6: Final answer
    x = 318,750.22

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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.