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Finding the Fourth Proportional to 604,942.60, 907,413.90 and 394,817.80

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Solution

The fourth proportional to 604,942.60, 907,413.90 and 394,817.80 is: 592,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,942.60 : 907,413.90 = 394,817.80 : x
  2. Step 2: Convert to fraction form
    604,942.60/907,413.90 = 394,817.80/x
  3. Step 3: Cross multiply
    604,942.60x = 907,413.90 × 394,817.80
  4. Step 4: Simplify right side
    604,942.60x = 358,263,159,687.42
  5. Step 5: Solve for x
    x = 358,263,159,687.42/604,942.60
  6. Step 6: Final answer
    x = 592,226.70

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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.