Home / 678,887.10-1,017,682.65-252,308.70

Finding the Fourth Proportional to 678,887.10, 1,017,682.65 and 252,308.70

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Solution

The fourth proportional to 678,887.10, 1,017,682.65 and 252,308.70 is: 378,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,887.10 : 1,017,682.65 = 252,308.70 : x
  2. Step 2: Convert to fraction form
    678,887.10/1,017,682.65 = 252,308.70/x
  3. Step 3: Cross multiply
    678,887.10x = 1,017,682.65 × 252,308.70
  4. Step 4: Simplify right side
    678,887.10x = 256,770,186,434.06
  5. Step 5: Solve for x
    x = 256,770,186,434.06/678,887.10
  6. Step 6: Final answer
    x = 378,222.22

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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.