Home / 1,128,781.89-1,557,719.03-676,072.89

Finding the Fourth Proportional to 1,128,781.89, 1,557,719.03 and 676,072.89

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Solution

The fourth proportional to 1,128,781.89, 1,557,719.03 and 676,072.89 is: 932,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,781.89 : 1,557,719.03 = 676,072.89 : x
  2. Step 2: Convert to fraction form
    1,128,781.89/1,557,719.03 = 676,072.89/x
  3. Step 3: Cross multiply
    1,128,781.89x = 1,557,719.03 × 676,072.89
  4. Step 4: Simplify right side
    1,128,781.89x = 1,053,131,606,420.10
  5. Step 5: Solve for x
    x = 1,053,131,606,420.10/1,128,781.89
  6. Step 6: Final answer
    x = 932,980.60

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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.