Home / 642,292.67-886,322.31-351,903.83

Finding the Fourth Proportional to 642,292.67, 886,322.31 and 351,903.83

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Solution

The fourth proportional to 642,292.67, 886,322.31 and 351,903.83 is: 485,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,292.67 : 886,322.31 = 351,903.83 : x
  2. Step 2: Convert to fraction form
    642,292.67/886,322.31 = 351,903.83/x
  3. Step 3: Cross multiply
    642,292.67x = 886,322.31 × 351,903.83
  4. Step 4: Simplify right side
    642,292.67x = 311,900,219,704.87
  5. Step 5: Solve for x
    x = 311,900,219,704.87/642,292.67
  6. Step 6: Final answer
    x = 485,604.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.