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Finding the Fourth Proportional to 457,453.17, 631,286.86 and 253,507.45

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Solution

The fourth proportional to 457,453.17, 631,286.86 and 253,507.45 is: 349,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,453.17 : 631,286.86 = 253,507.45 : x
  2. Step 2: Convert to fraction form
    457,453.17/631,286.86 = 253,507.45/x
  3. Step 3: Cross multiply
    457,453.17x = 631,286.86 × 253,507.45
  4. Step 4: Simplify right side
    457,453.17x = 160,035,920,829.57
  5. Step 5: Solve for x
    x = 160,035,920,829.57/457,453.17
  6. Step 6: Final answer
    x = 349,841.11

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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.