Home / 457,249.30-630,997.20-253,299.58

Finding the Fourth Proportional to 457,249.30, 630,997.20 and 253,299.58

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Solution

The fourth proportional to 457,249.30, 630,997.20 and 253,299.58 is: 349,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,249.30 : 630,997.20 = 253,299.58 : x
  2. Step 2: Convert to fraction form
    457,249.30/630,997.20 = 253,299.58/x
  3. Step 3: Cross multiply
    457,249.30x = 630,997.20 × 253,299.58
  4. Step 4: Simplify right side
    457,249.30x = 159,831,325,741.18
  5. Step 5: Solve for x
    x = 159,831,325,741.18/457,249.30
  6. Step 6: Final answer
    x = 349,549.63

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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.