Home / 661,983.10-991,954.05-492,709.30

Finding the Fourth Proportional to 661,983.10, 991,954.05 and 492,709.30

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Solution

The fourth proportional to 661,983.10, 991,954.05 and 492,709.30 is: 738,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,983.10 : 991,954.05 = 492,709.30 : x
  2. Step 2: Convert to fraction form
    661,983.10/991,954.05 = 492,709.30/x
  3. Step 3: Cross multiply
    661,983.10x = 991,954.05 × 492,709.30
  4. Step 4: Simplify right side
    661,983.10x = 488,744,985,607.67
  5. Step 5: Solve for x
    x = 488,744,985,607.67/661,983.10
  6. Step 6: Final answer
    x = 738,304.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.