Home / 679,871.85-938,225.03-373,979.57

Finding the Fourth Proportional to 679,871.85, 938,225.03 and 373,979.57

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Solution

The fourth proportional to 679,871.85, 938,225.03 and 373,979.57 is: 516,092.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,871.85 : 938,225.03 = 373,979.57 : x
  2. Step 2: Convert to fraction form
    679,871.85/938,225.03 = 373,979.57/x
  3. Step 3: Cross multiply
    679,871.85x = 938,225.03 × 373,979.57
  4. Step 4: Simplify right side
    679,871.85x = 350,876,993,282.64
  5. Step 5: Solve for x
    x = 350,876,993,282.64/679,871.85
  6. Step 6: Final answer
    x = 516,092.84

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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.