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Finding the Fourth Proportional to 602,797.77, 831,902.49 and 398,494.38

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Solution

The fourth proportional to 602,797.77, 831,902.49 and 398,494.38 is: 549,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,797.77 : 831,902.49 = 398,494.38 : x
  2. Step 2: Convert to fraction form
    602,797.77/831,902.49 = 398,494.38/x
  3. Step 3: Cross multiply
    602,797.77x = 831,902.49 × 398,494.38
  4. Step 4: Simplify right side
    602,797.77x = 331,508,466,973.01
  5. Step 5: Solve for x
    x = 331,508,466,973.01/602,797.77
  6. Step 6: Final answer
    x = 549,949.72

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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.