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Finding the Fourth Proportional to 674,767.91, 931,179.63 and 368,845.49

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Solution

The fourth proportional to 674,767.91, 931,179.63 and 368,845.49 is: 509,006.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,767.91 : 931,179.63 = 368,845.49 : x
  2. Step 2: Convert to fraction form
    674,767.91/931,179.63 = 368,845.49/x
  3. Step 3: Cross multiply
    674,767.91x = 931,179.63 × 368,845.49
  4. Step 4: Simplify right side
    674,767.91x = 343,461,406,905.37
  5. Step 5: Solve for x
    x = 343,461,406,905.37/674,767.91
  6. Step 6: Final answer
    x = 509,006.73

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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.