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Finding the Fourth Proportional to 673,718, 929,730.84 and 371,914.16

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Solution

The fourth proportional to 673,718, 929,730.84 and 371,914.16 is: 513,241.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,718 : 929,730.84 = 371,914.16 : x
  2. Step 2: Convert to fraction form
    673,718/929,730.84 = 371,914.16/x
  3. Step 3: Cross multiply
    673,718x = 929,730.84 × 371,914.16
  4. Step 4: Simplify right side
    673,718x = 345,780,064,384.69
  5. Step 5: Solve for x
    x = 345,780,064,384.69/673,718
  6. Step 6: Final answer
    x = 513,241.54

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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.