Home / 745,055.56-1,028,179.20-405,523

Finding the Fourth Proportional to 745,055.56, 1,028,179.20 and 405,523

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Solution

The fourth proportional to 745,055.56, 1,028,179.20 and 405,523 is: 559,623.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,055.56 : 1,028,179.20 = 405,523 : x
  2. Step 2: Convert to fraction form
    745,055.56/1,028,179.20 = 405,523/x
  3. Step 3: Cross multiply
    745,055.56x = 1,028,179.20 × 405,523
  4. Step 4: Simplify right side
    745,055.56x = 416,950,313,721.60
  5. Step 5: Solve for x
    x = 416,950,313,721.60/745,055.56
  6. Step 6: Final answer
    x = 559,623.12

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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.