Home / 448,979.40-673,469.10-212,783.40

Finding the Fourth Proportional to 448,979.40, 673,469.10 and 212,783.40

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Solution

The fourth proportional to 448,979.40, 673,469.10 and 212,783.40 is: 319,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,979.40 : 673,469.10 = 212,783.40 : x
  2. Step 2: Convert to fraction form
    448,979.40/673,469.10 = 212,783.40/x
  3. Step 3: Cross multiply
    448,979.40x = 673,469.10 × 212,783.40
  4. Step 4: Simplify right side
    448,979.40x = 143,303,044,892.94
  5. Step 5: Solve for x
    x = 143,303,044,892.94/448,979.40
  6. Step 6: Final answer
    x = 319,175.10

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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.