Home / 745,163.50-1,028,325.75-405,634.30

Finding the Fourth Proportional to 745,163.50, 1,028,325.75 and 405,634.30

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Solution

The fourth proportional to 745,163.50, 1,028,325.75 and 405,634.30 is: 559,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,163.50 : 1,028,325.75 = 405,634.30 : x
  2. Step 2: Convert to fraction form
    745,163.50/1,028,325.75 = 405,634.30/x
  3. Step 3: Cross multiply
    745,163.50x = 1,028,325.75 × 405,634.30
  4. Step 4: Simplify right side
    745,163.50x = 417,124,195,773.23
  5. Step 5: Solve for x
    x = 417,124,195,773.23/745,163.50
  6. Step 6: Final answer
    x = 559,775.40

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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.