Home / 996,971.31-1,375,938.77-561,402.72

Finding the Fourth Proportional to 996,971.31, 1,375,938.77 and 561,402.72

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Solution

The fourth proportional to 996,971.31, 1,375,938.77 and 561,402.72 is: 774,802.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,971.31 : 1,375,938.77 = 561,402.72 : x
  2. Step 2: Convert to fraction form
    996,971.31/1,375,938.77 = 561,402.72/x
  3. Step 3: Cross multiply
    996,971.31x = 1,375,938.77 × 561,402.72
  4. Step 4: Simplify right side
    996,971.31x = 772,455,765,224.44
  5. Step 5: Solve for x
    x = 772,455,765,224.44/996,971.31
  6. Step 6: Final answer
    x = 774,802.40

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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.