Home / 1,425,996.80-2,138,916.48-479,269.76

Finding the Fourth Proportional to 1,425,996.80, 2,138,916.48 and 479,269.76

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Solution

The fourth proportional to 1,425,996.80, 2,138,916.48 and 479,269.76 is: 718,878.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,996.80 : 2,138,916.48 = 479,269.76 : x
  2. Step 2: Convert to fraction form
    1,425,996.80/2,138,916.48 = 479,269.76/x
  3. Step 3: Cross multiply
    1,425,996.80x = 2,138,916.48 × 479,269.76
  4. Step 4: Simplify right side
    1,425,996.80x = 1,025,117,988,029.64
  5. Step 5: Solve for x
    x = 1,025,117,988,029.64/1,425,996.80
  6. Step 6: Final answer
    x = 718,878.18

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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.