Home / 820,402.44-1,230,596.37-287,798.69

Finding the Fourth Proportional to 820,402.44, 1,230,596.37 and 287,798.69

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Solution

The fourth proportional to 820,402.44, 1,230,596.37 and 287,798.69 is: 431,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,402.44 : 1,230,596.37 = 287,798.69 : x
  2. Step 2: Convert to fraction form
    820,402.44/1,230,596.37 = 287,798.69/x
  3. Step 3: Cross multiply
    820,402.44x = 1,230,596.37 × 287,798.69
  4. Step 4: Simplify right side
    820,402.44x = 354,164,017,051.77
  5. Step 5: Solve for x
    x = 354,164,017,051.77/820,402.44
  6. Step 6: Final answer
    x = 431,695.47

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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.