Home / 743,467.36-1,025,951.52-421,170.88

Finding the Fourth Proportional to 743,467.36, 1,025,951.52 and 421,170.88

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Solution

The fourth proportional to 743,467.36, 1,025,951.52 and 421,170.88 is: 581,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,467.36 : 1,025,951.52 = 421,170.88 : x
  2. Step 2: Convert to fraction form
    743,467.36/1,025,951.52 = 421,170.88/x
  3. Step 3: Cross multiply
    743,467.36x = 1,025,951.52 × 421,170.88
  4. Step 4: Simplify right side
    743,467.36x = 432,100,904,515.74
  5. Step 5: Solve for x
    x = 432,100,904,515.74/743,467.36
  6. Step 6: Final answer
    x = 581,196.87

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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.