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Finding the Fourth Proportional to 637,286.40, 956,620.80 and 357,350.40

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Solution

The fourth proportional to 637,286.40, 956,620.80 and 357,350.40 is: 536,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,286.40 : 956,620.80 = 357,350.40 : x
  2. Step 2: Convert to fraction form
    637,286.40/956,620.80 = 357,350.40/x
  3. Step 3: Cross multiply
    637,286.40x = 956,620.80 × 357,350.40
  4. Step 4: Simplify right side
    637,286.40x = 341,848,825,528.32
  5. Step 5: Solve for x
    x = 341,848,825,528.32/637,286.40
  6. Step 6: Final answer
    x = 536,413.18

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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.