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Finding the Fourth Proportional to 669,915.60, 924,473.04 and 368,103.12

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Solution

The fourth proportional to 669,915.60, 924,473.04 and 368,103.12 is: 507,976.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,915.60 : 924,473.04 = 368,103.12 : x
  2. Step 2: Convert to fraction form
    669,915.60/924,473.04 = 368,103.12/x
  3. Step 3: Cross multiply
    669,915.60x = 924,473.04 × 368,103.12
  4. Step 4: Simplify right side
    669,915.60x = 340,301,410,379.89
  5. Step 5: Solve for x
    x = 340,301,410,379.89/669,915.60
  6. Step 6: Final answer
    x = 507,976.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.