Home / 1,415,227.05-2,120,876.60-644,842.04

Finding the Fourth Proportional to 1,415,227.05, 2,120,876.60 and 644,842.04

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Solution

The fourth proportional to 1,415,227.05, 2,120,876.60 and 644,842.04 is: 966,368.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,227.05 : 2,120,876.60 = 644,842.04 : x
  2. Step 2: Convert to fraction form
    1,415,227.05/2,120,876.60 = 644,842.04/x
  3. Step 3: Cross multiply
    1,415,227.05x = 2,120,876.60 × 644,842.04
  4. Step 4: Simplify right side
    1,415,227.05x = 1,367,630,379,503.67
  5. Step 5: Solve for x
    x = 1,367,630,379,503.67/1,415,227.05
  6. Step 6: Final answer
    x = 966,368.17

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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.