Home / 448,775.40-673,163.10-212,579.40

Finding the Fourth Proportional to 448,775.40, 673,163.10 and 212,579.40

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Solution

The fourth proportional to 448,775.40, 673,163.10 and 212,579.40 is: 318,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,775.40 : 673,163.10 = 212,579.40 : x
  2. Step 2: Convert to fraction form
    448,775.40/673,163.10 = 212,579.40/x
  3. Step 3: Cross multiply
    448,775.40x = 673,163.10 × 212,579.40
  4. Step 4: Simplify right side
    448,775.40x = 143,100,607,900.14
  5. Step 5: Solve for x
    x = 143,100,607,900.14/448,775.40
  6. Step 6: Final answer
    x = 318,869.10

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Similar ratio
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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.