Home / 728,971.69-1,092,570.99-515,801.02

Finding the Fourth Proportional to 728,971.69, 1,092,570.99 and 515,801.02

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Solution

The fourth proportional to 728,971.69, 1,092,570.99 and 515,801.02 is: 773,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,971.69 : 1,092,570.99 = 515,801.02 : x
  2. Step 2: Convert to fraction form
    728,971.69/1,092,570.99 = 515,801.02/x
  3. Step 3: Cross multiply
    728,971.69x = 1,092,570.99 × 515,801.02
  4. Step 4: Simplify right side
    728,971.69x = 563,549,231,064.41
  5. Step 5: Solve for x
    x = 563,549,231,064.41/728,971.69
  6. Step 6: Final answer
    x = 773,074.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.