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Finding the Fourth Proportional to 455,151.22, 627,753.74 and 291,823.32

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Solution

The fourth proportional to 455,151.22, 627,753.74 and 291,823.32 is: 402,488.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,151.22 : 627,753.74 = 291,823.32 : x
  2. Step 2: Convert to fraction form
    455,151.22/627,753.74 = 291,823.32/x
  3. Step 3: Cross multiply
    455,151.22x = 627,753.74 × 291,823.32
  4. Step 4: Simplify right side
    455,151.22x = 183,193,180,549.22
  5. Step 5: Solve for x
    x = 183,193,180,549.22/455,151.22
  6. Step 6: Final answer
    x = 402,488.61

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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.