Home / 850,942.70-1,276,414.05-431,038.70

Finding the Fourth Proportional to 850,942.70, 1,276,414.05 and 431,038.70

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Solution

The fourth proportional to 850,942.70, 1,276,414.05 and 431,038.70 is: 646,558.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,942.70 : 1,276,414.05 = 431,038.70 : x
  2. Step 2: Convert to fraction form
    850,942.70/1,276,414.05 = 431,038.70/x
  3. Step 3: Cross multiply
    850,942.70x = 1,276,414.05 × 431,038.70
  4. Step 4: Simplify right side
    850,942.70x = 550,183,852,773.74
  5. Step 5: Solve for x
    x = 550,183,852,773.74/850,942.70
  6. Step 6: Final answer
    x = 646,558.05

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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.