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Finding the Fourth Proportional to 556,629.13, 768,148.49 and 301,980.25

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Solution

The fourth proportional to 556,629.13, 768,148.49 and 301,980.25 is: 416,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,629.13 : 768,148.49 = 301,980.25 : x
  2. Step 2: Convert to fraction form
    556,629.13/768,148.49 = 301,980.25/x
  3. Step 3: Cross multiply
    556,629.13x = 768,148.49 × 301,980.25
  4. Step 4: Simplify right side
    556,629.13x = 231,965,671,537.42
  5. Step 5: Solve for x
    x = 231,965,671,537.42/556,629.13
  6. Step 6: Final answer
    x = 416,732.90

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Similar ratio
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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.