Home / 885,752.80-1,328,629.20-324,714.40

Finding the Fourth Proportional to 885,752.80, 1,328,629.20 and 324,714.40

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Solution

The fourth proportional to 885,752.80, 1,328,629.20 and 324,714.40 is: 487,071.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,752.80 : 1,328,629.20 = 324,714.40 : x
  2. Step 2: Convert to fraction form
    885,752.80/1,328,629.20 = 324,714.40/x
  3. Step 3: Cross multiply
    885,752.80x = 1,328,629.20 × 324,714.40
  4. Step 4: Simplify right side
    885,752.80x = 431,425,033,500.48
  5. Step 5: Solve for x
    x = 431,425,033,500.48/885,752.80
  6. Step 6: Final answer
    x = 487,071.60

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Similar ratio
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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.