Home / 679,899.67-938,279.25-373,983.94

Finding the Fourth Proportional to 679,899.67, 938,279.25 and 373,983.94

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Solution

The fourth proportional to 679,899.67, 938,279.25 and 373,983.94 is: 516,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,899.67 : 938,279.25 = 373,983.94 : x
  2. Step 2: Convert to fraction form
    679,899.67/938,279.25 = 373,983.94/x
  3. Step 3: Cross multiply
    679,899.67x = 938,279.25 × 373,983.94
  4. Step 4: Simplify right side
    679,899.67x = 350,901,370,735.25
  5. Step 5: Solve for x
    x = 350,901,370,735.25/679,899.67
  6. Step 6: Final answer
    x = 516,107.58

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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.