Home / 673,665.80-1,010,498.70-407,945.30

Finding the Fourth Proportional to 673,665.80, 1,010,498.70 and 407,945.30

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Solution

The fourth proportional to 673,665.80, 1,010,498.70 and 407,945.30 is: 611,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,665.80 : 1,010,498.70 = 407,945.30 : x
  2. Step 2: Convert to fraction form
    673,665.80/1,010,498.70 = 407,945.30/x
  3. Step 3: Cross multiply
    673,665.80x = 1,010,498.70 × 407,945.30
  4. Step 4: Simplify right side
    673,665.80x = 412,228,195,321.11
  5. Step 5: Solve for x
    x = 412,228,195,321.11/673,665.80
  6. Step 6: Final answer
    x = 611,917.95

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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.