Home / 406,004.13-608,729.40-205,938.75

Finding the Fourth Proportional to 406,004.13, 608,729.40 and 205,938.75

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Solution

The fourth proportional to 406,004.13, 608,729.40 and 205,938.75 is: 308,767.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,004.13 : 608,729.40 = 205,938.75 : x
  2. Step 2: Convert to fraction form
    406,004.13/608,729.40 = 205,938.75/x
  3. Step 3: Cross multiply
    406,004.13x = 608,729.40 × 205,938.75
  4. Step 4: Simplify right side
    406,004.13x = 125,360,971,724.25
  5. Step 5: Solve for x
    x = 125,360,971,724.25/406,004.13
  6. Step 6: Final answer
    x = 308,767.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.