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Finding the Fourth Proportional to 457,481.79, 631,315.79 and 253,528.48

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Solution

The fourth proportional to 457,481.79, 631,315.79 and 253,528.48 is: 349,864.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,481.79 : 631,315.79 = 253,528.48 : x
  2. Step 2: Convert to fraction form
    457,481.79/631,315.79 = 253,528.48/x
  3. Step 3: Cross multiply
    457,481.79x = 631,315.79 × 253,528.48
  4. Step 4: Simplify right side
    457,481.79x = 160,056,529,792.77
  5. Step 5: Solve for x
    x = 160,056,529,792.77/457,481.79
  6. Step 6: Final answer
    x = 349,864.26

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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.