Home / 524,461.30-723,569.97-309,493.78

Finding the Fourth Proportional to 524,461.30, 723,569.97 and 309,493.78

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Solution

The fourth proportional to 524,461.30, 723,569.97 and 309,493.78 is: 426,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,461.30 : 723,569.97 = 309,493.78 : x
  2. Step 2: Convert to fraction form
    524,461.30/723,569.97 = 309,493.78/x
  3. Step 3: Cross multiply
    524,461.30x = 723,569.97 × 309,493.78
  4. Step 4: Simplify right side
    524,461.30x = 223,940,405,109.79
  5. Step 5: Solve for x
    x = 223,940,405,109.79/524,461.30
  6. Step 6: Final answer
    x = 426,991.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.