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Finding the Fourth Proportional to 605,287.60, 907,931.40 and 310,375.60

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Solution

The fourth proportional to 605,287.60, 907,931.40 and 310,375.60 is: 465,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,287.60 : 907,931.40 = 310,375.60 : x
  2. Step 2: Convert to fraction form
    605,287.60/907,931.40 = 310,375.60/x
  3. Step 3: Cross multiply
    605,287.60x = 907,931.40 × 310,375.60
  4. Step 4: Simplify right side
    605,287.60x = 281,799,753,033.84
  5. Step 5: Solve for x
    x = 281,799,753,033.84/605,287.60
  6. Step 6: Final answer
    x = 465,563.40

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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.