Home / 430,321.66-644,891.97-272,267.17

Finding the Fourth Proportional to 430,321.66, 644,891.97 and 272,267.17

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Solution

The fourth proportional to 430,321.66, 644,891.97 and 272,267.17 is: 408,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,321.66 : 644,891.97 = 272,267.17 : x
  2. Step 2: Convert to fraction form
    430,321.66/644,891.97 = 272,267.17/x
  3. Step 3: Cross multiply
    430,321.66x = 644,891.97 × 272,267.17
  4. Step 4: Simplify right side
    430,321.66x = 175,582,911,627.63
  5. Step 5: Solve for x
    x = 175,582,911,627.63/430,321.66
  6. Step 6: Final answer
    x = 408,027.13

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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.