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Finding the Fourth Proportional to 602,393.88, 831,314.64 and 330,475.68

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Solution

The fourth proportional to 602,393.88, 831,314.64 and 330,475.68 is: 456,062.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,393.88 : 831,314.64 = 330,475.68 : x
  2. Step 2: Convert to fraction form
    602,393.88/831,314.64 = 330,475.68/x
  3. Step 3: Cross multiply
    602,393.88x = 831,314.64 × 330,475.68
  4. Step 4: Simplify right side
    602,393.88x = 274,729,270,947.96
  5. Step 5: Solve for x
    x = 274,729,270,947.96/602,393.88
  6. Step 6: Final answer
    x = 456,062.52

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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.