Home / 1,119,907.40-1,679,861.10-979,939.40

Finding the Fourth Proportional to 1,119,907.40, 1,679,861.10 and 979,939.40

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Solution

The fourth proportional to 1,119,907.40, 1,679,861.10 and 979,939.40 is: 1,469,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,907.40 : 1,679,861.10 = 979,939.40 : x
  2. Step 2: Convert to fraction form
    1,119,907.40/1,679,861.10 = 979,939.40/x
  3. Step 3: Cross multiply
    1,119,907.40x = 1,679,861.10 × 979,939.40
  4. Step 4: Simplify right side
    1,119,907.40x = 1,646,162,078,417.34
  5. Step 5: Solve for x
    x = 1,646,162,078,417.34/1,119,907.40
  6. Step 6: Final answer
    x = 1,469,909.10

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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.