Home / 457,409.32-631,238.69-253,441.17

Finding the Fourth Proportional to 457,409.32, 631,238.69 and 253,441.17

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Solution

The fourth proportional to 457,409.32, 631,238.69 and 253,441.17 is: 349,756.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,409.32 : 631,238.69 = 253,441.17 : x
  2. Step 2: Convert to fraction form
    457,409.32/631,238.69 = 253,441.17/x
  3. Step 3: Cross multiply
    457,409.32x = 631,238.69 × 253,441.17
  4. Step 4: Simplify right side
    457,409.32x = 159,981,872,776.47
  5. Step 5: Solve for x
    x = 159,981,872,776.47/457,409.32
  6. Step 6: Final answer
    x = 349,756.48

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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.