Home / 678,411.20-1,017,837.94-341,277.86

Finding the Fourth Proportional to 678,411.20, 1,017,837.94 and 341,277.86

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Solution

The fourth proportional to 678,411.20, 1,017,837.94 and 341,277.86 is: 512,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,411.20 : 1,017,837.94 = 341,277.86 : x
  2. Step 2: Convert to fraction form
    678,411.20/1,017,837.94 = 341,277.86/x
  3. Step 3: Cross multiply
    678,411.20x = 1,017,837.94 × 341,277.86
  4. Step 4: Simplify right side
    678,411.20x = 347,365,553,990.01
  5. Step 5: Solve for x
    x = 347,365,553,990.01/678,411.20
  6. Step 6: Final answer
    x = 512,028.04

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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.