Home / 855,957.76-1,283,175.24-406,401.28

Finding the Fourth Proportional to 855,957.76, 1,283,175.24 and 406,401.28

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Solution

The fourth proportional to 855,957.76, 1,283,175.24 and 406,401.28 is: 609,240.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,957.76 : 1,283,175.24 = 406,401.28 : x
  2. Step 2: Convert to fraction form
    855,957.76/1,283,175.24 = 406,401.28/x
  3. Step 3: Cross multiply
    855,957.76x = 1,283,175.24 × 406,401.28
  4. Step 4: Simplify right side
    855,957.76x = 521,484,060,000.31
  5. Step 5: Solve for x
    x = 521,484,060,000.31/855,957.76
  6. Step 6: Final answer
    x = 609,240.41

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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.