Home / 916,634.31-1,264,936.32-508,712.46

Finding the Fourth Proportional to 916,634.31, 1,264,936.32 and 508,712.46

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Solution

The fourth proportional to 916,634.31, 1,264,936.32 and 508,712.46 is: 702,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,634.31 : 1,264,936.32 = 508,712.46 : x
  2. Step 2: Convert to fraction form
    916,634.31/1,264,936.32 = 508,712.46/x
  3. Step 3: Cross multiply
    916,634.31x = 1,264,936.32 × 508,712.46
  4. Step 4: Simplify right side
    916,634.31x = 643,488,867,090.55
  5. Step 5: Solve for x
    x = 643,488,867,090.55/916,634.31
  6. Step 6: Final answer
    x = 702,012.63

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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.