Home / 501,670.15-692,520.78-308,109.25

Finding the Fourth Proportional to 501,670.15, 692,520.78 and 308,109.25

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Solution

The fourth proportional to 501,670.15, 692,520.78 and 308,109.25 is: 425,323.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,670.15 : 692,520.78 = 308,109.25 : x
  2. Step 2: Convert to fraction form
    501,670.15/692,520.78 = 308,109.25/x
  3. Step 3: Cross multiply
    501,670.15x = 692,520.78 × 308,109.25
  4. Step 4: Simplify right side
    501,670.15x = 213,372,058,135.22
  5. Step 5: Solve for x
    x = 213,372,058,135.22/501,670.15
  6. Step 6: Final answer
    x = 425,323.41

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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.