Home / 917,256.15-1,265,824.97-509,383.38

Finding the Fourth Proportional to 917,256.15, 1,265,824.97 and 509,383.38

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Solution

The fourth proportional to 917,256.15, 1,265,824.97 and 509,383.38 is: 702,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,256.15 : 1,265,824.97 = 509,383.38 : x
  2. Step 2: Convert to fraction form
    917,256.15/1,265,824.97 = 509,383.38/x
  3. Step 3: Cross multiply
    917,256.15x = 1,265,824.97 × 509,383.38
  4. Step 4: Simplify right side
    917,256.15x = 644,790,205,817.11
  5. Step 5: Solve for x
    x = 644,790,205,817.11/917,256.15
  6. Step 6: Final answer
    x = 702,955.45

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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.