Home / 488,038.30-731,948.10-320,732.80

Finding the Fourth Proportional to 488,038.30, 731,948.10 and 320,732.80

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Solution

The fourth proportional to 488,038.30, 731,948.10 and 320,732.80 is: 481,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,038.30 : 731,948.10 = 320,732.80 : x
  2. Step 2: Convert to fraction form
    488,038.30/731,948.10 = 320,732.80/x
  3. Step 3: Cross multiply
    488,038.30x = 731,948.10 × 320,732.80
  4. Step 4: Simplify right side
    488,038.30x = 234,759,763,567.68
  5. Step 5: Solve for x
    x = 234,759,763,567.68/488,038.30
  6. Step 6: Final answer
    x = 481,027.34

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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.