Home / 457,020.94-630,688.50-253,071.85

Finding the Fourth Proportional to 457,020.94, 630,688.50 and 253,071.85

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Solution

The fourth proportional to 457,020.94, 630,688.50 and 253,071.85 is: 349,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,020.94 : 630,688.50 = 253,071.85 : x
  2. Step 2: Convert to fraction form
    457,020.94/630,688.50 = 253,071.85/x
  3. Step 3: Cross multiply
    457,020.94x = 630,688.50 × 253,071.85
  4. Step 4: Simplify right side
    457,020.94x = 159,609,505,468.73
  5. Step 5: Solve for x
    x = 159,609,505,468.73/457,020.94
  6. Step 6: Final answer
    x = 349,238.93

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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.