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Finding the Fourth Proportional to 669,979, 924,571.02 and 368,173

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Solution

The fourth proportional to 669,979, 924,571.02 and 368,173 is: 508,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,979 : 924,571.02 = 368,173 : x
  2. Step 2: Convert to fraction form
    669,979/924,571.02 = 368,173/x
  3. Step 3: Cross multiply
    669,979x = 924,571.02 × 368,173
  4. Step 4: Simplify right side
    669,979x = 340,402,086,146.46
  5. Step 5: Solve for x
    x = 340,402,086,146.46/669,979
  6. Step 6: Final answer
    x = 508,078.74

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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.