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Finding the Fourth Proportional to 455,014.38, 627,919.84 and 253,810.38

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Solution

The fourth proportional to 455,014.38, 627,919.84 and 253,810.38 is: 350,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,014.38 : 627,919.84 = 253,810.38 : x
  2. Step 2: Convert to fraction form
    455,014.38/627,919.84 = 253,810.38/x
  3. Step 3: Cross multiply
    455,014.38x = 627,919.84 × 253,810.38
  4. Step 4: Simplify right side
    455,014.38x = 159,372,573,199.94
  5. Step 5: Solve for x
    x = 159,372,573,199.94/455,014.38
  6. Step 6: Final answer
    x = 350,258.32

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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.