Home / 673,780.30-1,010,670.45-408,059.80

Finding the Fourth Proportional to 673,780.30, 1,010,670.45 and 408,059.80

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Solution

The fourth proportional to 673,780.30, 1,010,670.45 and 408,059.80 is: 612,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,780.30 : 1,010,670.45 = 408,059.80 : x
  2. Step 2: Convert to fraction form
    673,780.30/1,010,670.45 = 408,059.80/x
  3. Step 3: Cross multiply
    673,780.30x = 1,010,670.45 × 408,059.80
  4. Step 4: Simplify right side
    673,780.30x = 412,413,981,692.91
  5. Step 5: Solve for x
    x = 412,413,981,692.91/673,780.30
  6. Step 6: Final answer
    x = 612,089.70

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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.