Home / 448,981.40-673,472.10-212,785.40

Finding the Fourth Proportional to 448,981.40, 673,472.10 and 212,785.40

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Solution

The fourth proportional to 448,981.40, 673,472.10 and 212,785.40 is: 319,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,981.40 : 673,472.10 = 212,785.40 : x
  2. Step 2: Convert to fraction form
    448,981.40/673,472.10 = 212,785.40/x
  3. Step 3: Cross multiply
    448,981.40x = 673,472.10 × 212,785.40
  4. Step 4: Simplify right side
    448,981.40x = 143,305,030,187.34
  5. Step 5: Solve for x
    x = 143,305,030,187.34/448,981.40
  6. Step 6: Final answer
    x = 319,178.10

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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.