Home / 855,959.76-1,283,178.24-406,403.28

Finding the Fourth Proportional to 855,959.76, 1,283,178.24 and 406,403.28

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Solution

The fourth proportional to 855,959.76, 1,283,178.24 and 406,403.28 is: 609,243.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,959.76 : 1,283,178.24 = 406,403.28 : x
  2. Step 2: Convert to fraction form
    855,959.76/1,283,178.24 = 406,403.28/x
  3. Step 3: Cross multiply
    855,959.76x = 1,283,178.24 × 406,403.28
  4. Step 4: Simplify right side
    855,959.76x = 521,487,845,560.63
  5. Step 5: Solve for x
    x = 521,487,845,560.63/855,959.76
  6. Step 6: Final answer
    x = 609,243.41

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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.