Home / 679,741.97-938,022.43-373,817.41

Finding the Fourth Proportional to 679,741.97, 938,022.43 and 373,817.41

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Solution

The fourth proportional to 679,741.97, 938,022.43 and 373,817.41 is: 515,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,741.97 : 938,022.43 = 373,817.41 : x
  2. Step 2: Convert to fraction form
    679,741.97/938,022.43 = 373,817.41/x
  3. Step 3: Cross multiply
    679,741.97x = 938,022.43 × 373,817.41
  4. Step 4: Simplify right side
    679,741.97x = 350,649,115,304.51
  5. Step 5: Solve for x
    x = 350,649,115,304.51/679,741.97
  6. Step 6: Final answer
    x = 515,856.21

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Double scale
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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.