Home / 457,586.16-631,255.32-287,913.84

Finding the Fourth Proportional to 457,586.16, 631,255.32 and 287,913.84

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Solution

The fourth proportional to 457,586.16, 631,255.32 and 287,913.84 is: 397,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,586.16 : 631,255.32 = 287,913.84 : x
  2. Step 2: Convert to fraction form
    457,586.16/631,255.32 = 287,913.84/x
  3. Step 3: Cross multiply
    457,586.16x = 631,255.32 × 287,913.84
  4. Step 4: Simplify right side
    457,586.16x = 181,747,143,201.63
  5. Step 5: Solve for x
    x = 181,747,143,201.63/457,586.16
  6. Step 6: Final answer
    x = 397,186.71

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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.