Home / 1,458,687.21-2,187,951.66-447,809.32

Finding the Fourth Proportional to 1,458,687.21, 2,187,951.66 and 447,809.32

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Solution

The fourth proportional to 1,458,687.21, 2,187,951.66 and 447,809.32 is: 671,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,687.21 : 2,187,951.66 = 447,809.32 : x
  2. Step 2: Convert to fraction form
    1,458,687.21/2,187,951.66 = 447,809.32/x
  3. Step 3: Cross multiply
    1,458,687.21x = 2,187,951.66 × 447,809.32
  4. Step 4: Simplify right side
    1,458,687.21x = 979,785,145,057.47
  5. Step 5: Solve for x
    x = 979,785,145,057.47/1,458,687.21
  6. Step 6: Final answer
    x = 671,689.68

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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.