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Finding the Fourth Proportional to 455,322.38, 627,760.77 and 373,348.61

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Solution

The fourth proportional to 455,322.38, 627,760.77 and 373,348.61 is: 514,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,322.38 : 627,760.77 = 373,348.61 : x
  2. Step 2: Convert to fraction form
    455,322.38/627,760.77 = 373,348.61/x
  3. Step 3: Cross multiply
    455,322.38x = 627,760.77 × 373,348.61
  4. Step 4: Simplify right side
    455,322.38x = 234,373,608,707.27
  5. Step 5: Solve for x
    x = 234,373,608,707.27/455,322.38
  6. Step 6: Final answer
    x = 514,742.13

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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.