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Finding the Fourth Proportional to 438,930.36, 655,200.63 and 397,151.16

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Solution

The fourth proportional to 438,930.36, 655,200.63 and 397,151.16 is: 592,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,930.36 : 655,200.63 = 397,151.16 : x
  2. Step 2: Convert to fraction form
    438,930.36/655,200.63 = 397,151.16/x
  3. Step 3: Cross multiply
    438,930.36x = 655,200.63 × 397,151.16
  4. Step 4: Simplify right side
    438,930.36x = 260,213,690,237.23
  5. Step 5: Solve for x
    x = 260,213,690,237.23/438,930.36
  6. Step 6: Final answer
    x = 592,835.93

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.