Home / 731,870.53-1,009,959.63-405,198.09

Finding the Fourth Proportional to 731,870.53, 1,009,959.63 and 405,198.09

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Solution

The fourth proportional to 731,870.53, 1,009,959.63 and 405,198.09 is: 559,161.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,870.53 : 1,009,959.63 = 405,198.09 : x
  2. Step 2: Convert to fraction form
    731,870.53/1,009,959.63 = 405,198.09/x
  3. Step 3: Cross multiply
    731,870.53x = 1,009,959.63 × 405,198.09
  4. Step 4: Simplify right side
    731,870.53x = 409,233,716,840.46
  5. Step 5: Solve for x
    x = 409,233,716,840.46/731,870.53
  6. Step 6: Final answer
    x = 559,161.36

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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.