Home / 449,595.78-673,815.47-212,415.63

Finding the Fourth Proportional to 449,595.78, 673,815.47 and 212,415.63

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Solution

The fourth proportional to 449,595.78, 673,815.47 and 212,415.63 is: 318,350.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,595.78 : 673,815.47 = 212,415.63 : x
  2. Step 2: Convert to fraction form
    449,595.78/673,815.47 = 212,415.63/x
  3. Step 3: Cross multiply
    449,595.78x = 673,815.47 × 212,415.63
  4. Step 4: Simplify right side
    449,595.78x = 143,128,937,563.80
  5. Step 5: Solve for x
    x = 143,128,937,563.80/449,595.78
  6. Step 6: Final answer
    x = 318,350.27

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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.