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Finding the Fourth Proportional to 476,446.91, 657,309.20 and 272,388.20

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Solution

The fourth proportional to 476,446.91, 657,309.20 and 272,388.20 is: 375,788.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,446.91 : 657,309.20 = 272,388.20 : x
  2. Step 2: Convert to fraction form
    476,446.91/657,309.20 = 272,388.20/x
  3. Step 3: Cross multiply
    476,446.91x = 657,309.20 × 272,388.20
  4. Step 4: Simplify right side
    476,446.91x = 179,043,266,544.89
  5. Step 5: Solve for x
    x = 179,043,266,544.89/476,446.91
  6. Step 6: Final answer
    x = 375,788.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.