Home / 731,815.14-1,009,855.92-405,105.96

Finding the Fourth Proportional to 731,815.14, 1,009,855.92 and 405,105.96

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Solution

The fourth proportional to 731,815.14, 1,009,855.92 and 405,105.96 is: 559,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,815.14 : 1,009,855.92 = 405,105.96 : x
  2. Step 2: Convert to fraction form
    731,815.14/1,009,855.92 = 405,105.96/x
  3. Step 3: Cross multiply
    731,815.14x = 1,009,855.92 × 405,105.96
  4. Step 4: Simplify right side
    731,815.14x = 409,098,651,933.28
  5. Step 5: Solve for x
    x = 409,098,651,933.28/731,815.14
  6. Step 6: Final answer
    x = 559,019.12

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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.