Home / 482,977.44-666,962.64-311,196.96

Finding the Fourth Proportional to 482,977.44, 666,962.64 and 311,196.96

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Solution

The fourth proportional to 482,977.44, 666,962.64 and 311,196.96 is: 429,744.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,977.44 : 666,962.64 = 311,196.96 : x
  2. Step 2: Convert to fraction form
    482,977.44/666,962.64 = 311,196.96/x
  3. Step 3: Cross multiply
    482,977.44x = 666,962.64 × 311,196.96
  4. Step 4: Simplify right side
    482,977.44x = 207,556,746,001.57
  5. Step 5: Solve for x
    x = 207,556,746,001.57/482,977.44
  6. Step 6: Final answer
    x = 429,744.18

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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.