Home / 448,569.28-672,256.14-211,974.76

Finding the Fourth Proportional to 448,569.28, 672,256.14 and 211,974.76

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Solution

The fourth proportional to 448,569.28, 672,256.14 and 211,974.76 is: 317,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,569.28 : 672,256.14 = 211,974.76 : x
  2. Step 2: Convert to fraction form
    448,569.28/672,256.14 = 211,974.76/x
  3. Step 3: Cross multiply
    448,569.28x = 672,256.14 × 211,974.76
  4. Step 4: Simplify right side
    448,569.28x = 142,501,333,935.03
  5. Step 5: Solve for x
    x = 142,501,333,935.03/448,569.28
  6. Step 6: Final answer
    x = 317,679.65

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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.