Home / 678,789.86-1,018,187.22-229,514.46

Finding the Fourth Proportional to 678,789.86, 1,018,187.22 and 229,514.46

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Solution

The fourth proportional to 678,789.86, 1,018,187.22 and 229,514.46 is: 344,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,789.86 : 1,018,187.22 = 229,514.46 : x
  2. Step 2: Convert to fraction form
    678,789.86/1,018,187.22 = 229,514.46/x
  3. Step 3: Cross multiply
    678,789.86x = 1,018,187.22 × 229,514.46
  4. Step 4: Simplify right side
    678,789.86x = 233,688,689,977.20
  5. Step 5: Solve for x
    x = 233,688,689,977.20/678,789.86
  6. Step 6: Final answer
    x = 344,272.51

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1.5x scale

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.