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Finding the Fourth Proportional to 675,264.56, 931,945.46 and 388,840.46

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Solution

The fourth proportional to 675,264.56, 931,945.46 and 388,840.46 is: 536,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,264.56 : 931,945.46 = 388,840.46 : x
  2. Step 2: Convert to fraction form
    675,264.56/931,945.46 = 388,840.46/x
  3. Step 3: Cross multiply
    675,264.56x = 931,945.46 × 388,840.46
  4. Step 4: Simplify right side
    675,264.56x = 362,378,101,361.31
  5. Step 5: Solve for x
    x = 362,378,101,361.31/675,264.56
  6. Step 6: Final answer
    x = 536,646.11

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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.