Home / 1,780,457.10-2,670,689.00-432,620.85

Finding the Fourth Proportional to 1,780,457.10, 2,670,689.00 and 432,620.85

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Solution

The fourth proportional to 1,780,457.10, 2,670,689.00 and 432,620.85 is: 648,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,457.10 : 2,670,689.00 = 432,620.85 : x
  2. Step 2: Convert to fraction form
    1,780,457.10/2,670,689.00 = 432,620.85/x
  3. Step 3: Cross multiply
    1,780,457.10x = 2,670,689.00 × 432,620.85
  4. Step 4: Simplify right side
    1,780,457.10x = 1,155,395,743,102.55
  5. Step 5: Solve for x
    x = 1,155,395,743,102.55/1,780,457.10
  6. Step 6: Final answer
    x = 648,932.09

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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.