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Finding the Fourth Proportional to 602,082.60, 830,912.40 and 397,775.12

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Solution

The fourth proportional to 602,082.60, 830,912.40 and 397,775.12 is: 548,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,082.60 : 830,912.40 = 397,775.12 : x
  2. Step 2: Convert to fraction form
    602,082.60/830,912.40 = 397,775.12/x
  3. Step 3: Cross multiply
    602,082.60x = 830,912.40 × 397,775.12
  4. Step 4: Simplify right side
    602,082.60x = 330,516,275,464.93
  5. Step 5: Solve for x
    x = 330,516,275,464.93/602,082.60
  6. Step 6: Final answer
    x = 548,955.04

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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.