Home / 1,119,890.80-1,679,835.76-278,442.56

Finding the Fourth Proportional to 1,119,890.80, 1,679,835.76 and 278,442.56

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Solution

The fourth proportional to 1,119,890.80, 1,679,835.76 and 278,442.56 is: 417,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,890.80 : 1,679,835.76 = 278,442.56 : x
  2. Step 2: Convert to fraction form
    1,119,890.80/1,679,835.76 = 278,442.56/x
  3. Step 3: Cross multiply
    1,119,890.80x = 1,679,835.76 × 278,442.56
  4. Step 4: Simplify right side
    1,119,890.80x = 467,737,769,393.95
  5. Step 5: Solve for x
    x = 467,737,769,393.95/1,119,890.80
  6. Step 6: Final answer
    x = 417,663.73

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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.