Home / 854,372.10-1,279,808.55-433,884.90

Finding the Fourth Proportional to 854,372.10, 1,279,808.55 and 433,884.90

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Solution

The fourth proportional to 854,372.10, 1,279,808.55 and 433,884.90 is: 649,938.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,372.10 : 1,279,808.55 = 433,884.90 : x
  2. Step 2: Convert to fraction form
    854,372.10/1,279,808.55 = 433,884.90/x
  3. Step 3: Cross multiply
    854,372.10x = 1,279,808.55 × 433,884.90
  4. Step 4: Simplify right side
    854,372.10x = 555,289,604,735.90
  5. Step 5: Solve for x
    x = 555,289,604,735.90/854,372.10
  6. Step 6: Final answer
    x = 649,938.83

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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.