Home / 1,441,705.32-2,162,868.21-430,909.43

Finding the Fourth Proportional to 1,441,705.32, 2,162,868.21 and 430,909.43

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Solution

The fourth proportional to 1,441,705.32, 2,162,868.21 and 430,909.43 is: 646,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,705.32 : 2,162,868.21 = 430,909.43 : x
  2. Step 2: Convert to fraction form
    1,441,705.32/2,162,868.21 = 430,909.43/x
  3. Step 3: Cross multiply
    1,441,705.32x = 2,162,868.21 × 430,909.43
  4. Step 4: Simplify right side
    1,441,705.32x = 932,000,296,721.88
  5. Step 5: Solve for x
    x = 932,000,296,721.88/1,441,705.32
  6. Step 6: Final answer
    x = 646,456.86

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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.