Home / 673,025.13-1,007,167.98-420,424.56

Finding the Fourth Proportional to 673,025.13, 1,007,167.98 and 420,424.56

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Solution

The fourth proportional to 673,025.13, 1,007,167.98 and 420,424.56 is: 629,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,025.13 : 1,007,167.98 = 420,424.56 : x
  2. Step 2: Convert to fraction form
    673,025.13/1,007,167.98 = 420,424.56/x
  3. Step 3: Cross multiply
    673,025.13x = 1,007,167.98 × 420,424.56
  4. Step 4: Simplify right side
    673,025.13x = 423,438,154,837.59
  5. Step 5: Solve for x
    x = 423,438,154,837.59/673,025.13
  6. Step 6: Final answer
    x = 629,156.53

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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.