Home / 790,577.69-1,090,996.97-428,001.30

Finding the Fourth Proportional to 790,577.69, 1,090,996.97 and 428,001.30

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Solution

The fourth proportional to 790,577.69, 1,090,996.97 and 428,001.30 is: 590,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,577.69 : 1,090,996.97 = 428,001.30 : x
  2. Step 2: Convert to fraction form
    790,577.69/1,090,996.97 = 428,001.30/x
  3. Step 3: Cross multiply
    790,577.69x = 1,090,996.97 × 428,001.30
  4. Step 4: Simplify right side
    790,577.69x = 466,948,119,316.06
  5. Step 5: Solve for x
    x = 466,948,119,316.06/790,577.69
  6. Step 6: Final answer
    x = 590,641.66

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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.