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Finding the Fourth Proportional to 455,456.72, 628,530.36 and 254,252.72

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Solution

The fourth proportional to 455,456.72, 628,530.36 and 254,252.72 is: 350,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,456.72 : 628,530.36 = 254,252.72 : x
  2. Step 2: Convert to fraction form
    455,456.72/628,530.36 = 254,252.72/x
  3. Step 3: Cross multiply
    455,456.72x = 628,530.36 × 254,252.72
  4. Step 4: Simplify right side
    455,456.72x = 159,805,553,632.58
  5. Step 5: Solve for x
    x = 159,805,553,632.58/455,456.72
  6. Step 6: Final answer
    x = 350,868.80

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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.