Home / 851,499.03-1,276,777.43-338,644.80

Finding the Fourth Proportional to 851,499.03, 1,276,777.43 and 338,644.80

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Solution

The fourth proportional to 851,499.03, 1,276,777.43 and 338,644.80 is: 507,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,499.03 : 1,276,777.43 = 338,644.80 : x
  2. Step 2: Convert to fraction form
    851,499.03/1,276,777.43 = 338,644.80/x
  3. Step 3: Cross multiply
    851,499.03x = 1,276,777.43 × 338,644.80
  4. Step 4: Simplify right side
    851,499.03x = 432,374,038,908.44
  5. Step 5: Solve for x
    x = 432,374,038,908.44/851,499.03
  6. Step 6: Final answer
    x = 507,779.84

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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.