Home / 915,845.06-1,262,410.29-721,938.35

Finding the Fourth Proportional to 915,845.06, 1,262,410.29 and 721,938.35

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Solution

The fourth proportional to 915,845.06, 1,262,410.29 and 721,938.35 is: 995,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,845.06 : 1,262,410.29 = 721,938.35 : x
  2. Step 2: Convert to fraction form
    915,845.06/1,262,410.29 = 721,938.35/x
  3. Step 3: Cross multiply
    915,845.06x = 1,262,410.29 × 721,938.35
  4. Step 4: Simplify right side
    915,845.06x = 911,382,395,473.57
  5. Step 5: Solve for x
    x = 911,382,395,473.57/915,845.06
  6. Step 6: Final answer
    x = 995,127.28

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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.