Home / 731,156.31-1,008,976.84-404,460.81

Finding the Fourth Proportional to 731,156.31, 1,008,976.84 and 404,460.81

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Solution

The fourth proportional to 731,156.31, 1,008,976.84 and 404,460.81 is: 558,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,156.31 : 1,008,976.84 = 404,460.81 : x
  2. Step 2: Convert to fraction form
    731,156.31/1,008,976.84 = 404,460.81/x
  3. Step 3: Cross multiply
    731,156.31x = 1,008,976.84 × 404,460.81
  4. Step 4: Simplify right side
    731,156.31x = 408,091,590,241.62
  5. Step 5: Solve for x
    x = 408,091,590,241.62/731,156.31
  6. Step 6: Final answer
    x = 558,145.48

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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.