Home / 1,119,665.70-1,679,498.55-920,211.30

Finding the Fourth Proportional to 1,119,665.70, 1,679,498.55 and 920,211.30

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Solution

The fourth proportional to 1,119,665.70, 1,679,498.55 and 920,211.30 is: 1,380,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,665.70 : 1,679,498.55 = 920,211.30 : x
  2. Step 2: Convert to fraction form
    1,119,665.70/1,679,498.55 = 920,211.30/x
  3. Step 3: Cross multiply
    1,119,665.70x = 1,679,498.55 × 920,211.30
  4. Step 4: Simplify right side
    1,119,665.70x = 1,545,493,544,043.62
  5. Step 5: Solve for x
    x = 1,545,493,544,043.62/1,119,665.70
  6. Step 6: Final answer
    x = 1,380,316.95

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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.