Home / 1,128,780.89-1,557,717.65-676,071.89

Finding the Fourth Proportional to 1,128,780.89, 1,557,717.65 and 676,071.89

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Solution

The fourth proportional to 1,128,780.89, 1,557,717.65 and 676,071.89 is: 932,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,780.89 : 1,557,717.65 = 676,071.89 : x
  2. Step 2: Convert to fraction form
    1,128,780.89/1,557,717.65 = 676,071.89/x
  3. Step 3: Cross multiply
    1,128,780.89x = 1,557,717.65 × 676,071.89
  4. Step 4: Simplify right side
    1,128,780.89x = 1,053,129,121,306.33
  5. Step 5: Solve for x
    x = 1,053,129,121,306.33/1,128,780.89
  6. Step 6: Final answer
    x = 932,979.22

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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.