Home / 320,817.10-481,225.65-291,292.60

Finding the Fourth Proportional to 320,817.10, 481,225.65 and 291,292.60

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Solution

The fourth proportional to 320,817.10, 481,225.65 and 291,292.60 is: 436,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,817.10 : 481,225.65 = 291,292.60 : x
  2. Step 2: Convert to fraction form
    320,817.10/481,225.65 = 291,292.60/x
  3. Step 3: Cross multiply
    320,817.10x = 481,225.65 × 291,292.60
  4. Step 4: Simplify right side
    320,817.10x = 140,177,470,775.19
  5. Step 5: Solve for x
    x = 140,177,470,775.19/320,817.10
  6. Step 6: Final answer
    x = 436,938.90

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1.5x scale

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.