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Finding the Fourth Proportional to 673,523.16, 929,460.06 and 371,715

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Solution

The fourth proportional to 673,523.16, 929,460.06 and 371,715 is: 512,965.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,523.16 : 929,460.06 = 371,715 : x
  2. Step 2: Convert to fraction form
    673,523.16/929,460.06 = 371,715/x
  3. Step 3: Cross multiply
    673,523.16x = 929,460.06 × 371,715
  4. Step 4: Simplify right side
    673,523.16x = 345,494,246,202.90
  5. Step 5: Solve for x
    x = 345,494,246,202.90/673,523.16
  6. Step 6: Final answer
    x = 512,965.65

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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.