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Finding the Fourth Proportional to 457,004.79, 630,658.89 and 253,051.32

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Solution

The fourth proportional to 457,004.79, 630,658.89 and 253,051.32 is: 349,206.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,004.79 : 630,658.89 = 253,051.32 : x
  2. Step 2: Convert to fraction form
    457,004.79/630,658.89 = 253,051.32/x
  3. Step 3: Cross multiply
    457,004.79x = 630,658.89 × 253,051.32
  4. Step 4: Simplify right side
    457,004.79x = 159,589,064,584.24
  5. Step 5: Solve for x
    x = 159,589,064,584.24/457,004.79
  6. Step 6: Final answer
    x = 349,206.55

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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.