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Finding the Fourth Proportional to 505,873.20, 758,809.80 and 476,842.80

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Solution

The fourth proportional to 505,873.20, 758,809.80 and 476,842.80 is: 715,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,873.20 : 758,809.80 = 476,842.80 : x
  2. Step 2: Convert to fraction form
    505,873.20/758,809.80 = 476,842.80/x
  3. Step 3: Cross multiply
    505,873.20x = 758,809.80 × 476,842.80
  4. Step 4: Simplify right side
    505,873.20x = 361,832,989,699.44
  5. Step 5: Solve for x
    x = 361,832,989,699.44/505,873.20
  6. Step 6: Final answer
    x = 715,264.20

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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.