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Finding the Fourth Proportional to 616,433.40, 924,822.90 and 300,900.60

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Solution

The fourth proportional to 616,433.40, 924,822.90 and 300,900.60 is: 451,435.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,433.40 : 924,822.90 = 300,900.60 : x
  2. Step 2: Convert to fraction form
    616,433.40/924,822.90 = 300,900.60/x
  3. Step 3: Cross multiply
    616,433.40x = 924,822.90 × 300,900.60
  4. Step 4: Simplify right side
    616,433.40x = 278,279,765,503.74
  5. Step 5: Solve for x
    x = 278,279,765,503.74/616,433.40
  6. Step 6: Final answer
    x = 451,435.25

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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.