Home / 1,210,579.80-1,815,432.30-490,619.40

Finding the Fourth Proportional to 1,210,579.80, 1,815,432.30 and 490,619.40

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Solution

The fourth proportional to 1,210,579.80, 1,815,432.30 and 490,619.40 is: 735,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,579.80 : 1,815,432.30 = 490,619.40 : x
  2. Step 2: Convert to fraction form
    1,210,579.80/1,815,432.30 = 490,619.40/x
  3. Step 3: Cross multiply
    1,210,579.80x = 1,815,432.30 × 490,619.40
  4. Step 4: Simplify right side
    1,210,579.80x = 890,686,305,766.62
  5. Step 5: Solve for x
    x = 890,686,305,766.62/1,210,579.80
  6. Step 6: Final answer
    x = 735,751.83

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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.