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Finding the Fourth Proportional to 598,935.80, 897,366.90 and 388,465.40

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Solution

The fourth proportional to 598,935.80, 897,366.90 and 388,465.40 is: 582,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,935.80 : 897,366.90 = 388,465.40 : x
  2. Step 2: Convert to fraction form
    598,935.80/897,366.90 = 388,465.40/x
  3. Step 3: Cross multiply
    598,935.80x = 897,366.90 × 388,465.40
  4. Step 4: Simplify right side
    598,935.80x = 348,595,991,755.26
  5. Step 5: Solve for x
    x = 348,595,991,755.26/598,935.80
  6. Step 6: Final answer
    x = 582,025.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.