Home / 685,306.01-1,026,835.40-485,267.28

Finding the Fourth Proportional to 685,306.01, 1,026,835.40 and 485,267.28

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Solution

The fourth proportional to 685,306.01, 1,026,835.40 and 485,267.28 is: 727,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,306.01 : 1,026,835.40 = 485,267.28 : x
  2. Step 2: Convert to fraction form
    685,306.01/1,026,835.40 = 485,267.28/x
  3. Step 3: Cross multiply
    685,306.01x = 1,026,835.40 × 485,267.28
  4. Step 4: Simplify right side
    685,306.01x = 498,289,619,139.38
  5. Step 5: Solve for x
    x = 498,289,619,139.38/685,306.01
  6. Step 6: Final answer
    x = 727,105.29

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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.