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Finding the Fourth Proportional to 455,145.48, 627,897.42 and 273,750.84

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Solution

The fourth proportional to 455,145.48, 627,897.42 and 273,750.84 is: 377,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,145.48 : 627,897.42 = 273,750.84 : x
  2. Step 2: Convert to fraction form
    455,145.48/627,897.42 = 273,750.84/x
  3. Step 3: Cross multiply
    455,145.48x = 627,897.42 × 273,750.84
  4. Step 4: Simplify right side
    455,145.48x = 171,887,446,158.83
  5. Step 5: Solve for x
    x = 171,887,446,158.83/455,145.48
  6. Step 6: Final answer
    x = 377,653.86

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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.