Home / 916,685.89-1,265,017.24-508,791.25

Finding the Fourth Proportional to 916,685.89, 1,265,017.24 and 508,791.25

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Solution

The fourth proportional to 916,685.89, 1,265,017.24 and 508,791.25 is: 702,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,685.89 : 1,265,017.24 = 508,791.25 : x
  2. Step 2: Convert to fraction form
    916,685.89/1,265,017.24 = 508,791.25/x
  3. Step 3: Cross multiply
    916,685.89x = 1,265,017.24 × 508,791.25
  4. Step 4: Simplify right side
    916,685.89x = 643,629,705,028.41
  5. Step 5: Solve for x
    x = 643,629,705,028.41/916,685.89
  6. Step 6: Final answer
    x = 702,126.77

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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.