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Finding the Fourth Proportional to 505,074.80, 758,431.40 and 365,810.80

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Solution

The fourth proportional to 505,074.80, 758,431.40 and 365,810.80 is: 549,309.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,074.80 : 758,431.40 = 365,810.80 : x
  2. Step 2: Convert to fraction form
    505,074.80/758,431.40 = 365,810.80/x
  3. Step 3: Cross multiply
    505,074.80x = 758,431.40 × 365,810.80
  4. Step 4: Simplify right side
    505,074.80x = 277,442,397,179.12
  5. Step 5: Solve for x
    x = 277,442,397,179.12/505,074.80
  6. Step 6: Final answer
    x = 549,309.52

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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.