Home / 731,868.31-1,009,956.57-405,195.88

Finding the Fourth Proportional to 731,868.31, 1,009,956.57 and 405,195.88

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Solution

The fourth proportional to 731,868.31, 1,009,956.57 and 405,195.88 is: 559,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,868.31 : 1,009,956.57 = 405,195.88 : x
  2. Step 2: Convert to fraction form
    731,868.31/1,009,956.57 = 405,195.88/x
  3. Step 3: Cross multiply
    731,868.31x = 1,009,956.57 × 405,195.88
  4. Step 4: Simplify right side
    731,868.31x = 409,230,243,924.86
  5. Step 5: Solve for x
    x = 409,230,243,924.86/731,868.31
  6. Step 6: Final answer
    x = 559,158.30

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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.