Home / 730,387.82-1,007,987.34-403,693.83

Finding the Fourth Proportional to 730,387.82, 1,007,987.34 and 403,693.83

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Solution

The fourth proportional to 730,387.82, 1,007,987.34 and 403,693.83 is: 557,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,387.82 : 1,007,987.34 = 403,693.83 : x
  2. Step 2: Convert to fraction form
    730,387.82/1,007,987.34 = 403,693.83/x
  3. Step 3: Cross multiply
    730,387.82x = 1,007,987.34 × 403,693.83
  4. Step 4: Simplify right side
    730,387.82x = 406,918,269,876.11
  5. Step 5: Solve for x
    x = 406,918,269,876.11/730,387.82
  6. Step 6: Final answer
    x = 557,126.31

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1.5x scale

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.