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Finding the Fourth Proportional to 679,735.28, 938,058.77 and 373,835.31

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Solution

The fourth proportional to 679,735.28, 938,058.77 and 373,835.31 is: 515,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,735.28 : 938,058.77 = 373,835.31 : x
  2. Step 2: Convert to fraction form
    679,735.28/938,058.77 = 373,835.31/x
  3. Step 3: Cross multiply
    679,735.28x = 938,058.77 × 373,835.31
  4. Step 4: Simplify right side
    679,735.28x = 350,679,491,081.17
  5. Step 5: Solve for x
    x = 350,679,491,081.17/679,735.28
  6. Step 6: Final answer
    x = 515,905.97

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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.